Big was sleeping peacefully in his hut one night, when he woke up and saw that his friend, Froggy, had swallowed his lucky charm: the yellow Chaos Emerald. As soon as he noticed that Froggy had grown a tail, Froggy ran off, causing Big to chase after him. Big followed Froggy all over Station Square, from Twinkle Park to Icecap. Big was able to catch Froggy at Emerald Coast, but E-102 Gamma, a robot made by Eggman, snatched him from Big and ran off. Seeing that, Big tried to convince the robot to give him Froggy back, but without any positive results.
Later, Big went on board the Egg Carrier to once again reunite with his pal, Froggy. He had to fish him out of one of the many water tanks on the Hot Shelter. After finally catching Froggy, Big was teleported by Tikal into the past for a while, so she could pass him a message, just like she did to the other characters about Chaos, the god of destruction. In Big's case, he was shown just how important his "lucky charm" really was. When he got back to the present, he decided to try to get out of the Egg Carrier, but was caught by Dr. Eggman and Chaos 4, which then evolved to Chaos 6 when he absorbed Froggy (whose tail and Chaos Emerald had now disappeared). Just then, Sonic appeared to the rescue. Big merely had to fish Froggy out of Chaos 6, leaving the rest to Sonic once he rescued his buddy. After leaving Chaos to Sonic, Big found the Tornado 2 and decided to fly home with it, but crashed it near his house. However, that made the Chaos Emerald inside the Tornado 2 an easy target to Chaos when he was on a vicious rampage to gather all seven by himself. When Perfect Chaos destroyed the city of Station Square, Big gave one of the seven Chaos Emeralds to Sonic so he could go super and defeat Perfect Chaos.
He has an important role in Sonic Heroes. In this game he is the Power Type member of Team Rose and teams up with Amy Rose and Cream the Rabbit to find Froggy and Chocola who had recently vanished, supposedly kidnapped. After defeating the Egg Emperor on the Egg Fleet, the Eggman clone piloting the Mech turns into a puddle of liquid, and Chocola and Froggy rise out of it. He later joins the other teams in defeating the true villain behind Froggy and Chocola's capture, Metal Sonic, by buying Team Sonic enough time to use the Chaos Emeralds.
Big makes an appearance in the Nintendo DS version of Sonic Colors, where he is once again searching for Froggy. Having apparently followed Froggy into the Aquarium Park in Dr. Eggman's Incredible Interstellar Amusement Park, Big tries to search for Froggy at one of the rides, but has to clear a mission to be allowed to enter. He soon after meet Sonic and Tails, and explains that he is looking for Froggy. Sonic then says that he would help looking for Froggy by taking the mission. Sonic soon returns, but says he could not find Froggy, much to Big's disappointment. Big then asks if Sonic and Tails are hungry and they admit they could go for a bite to eat. As they ask Big what kind of snack he was thinking about, Big says fish and shows them a Chopper, much to their displeasure.
Big is later joined in his search for Froggy by Amy who is also trying to find Sonic. They soon run into Sonic and Tails, and Amy asks Sonic to entertain them by clearing a mission. After Sonic clears it, Amy offers to make a picnic for them, which Big eagerly asks if he can join them. He is also inspired to run after seeing Sonic, but Amy says he has to lose some weight first.
Team Sonic Racing
In Team Sonic Racing, Big and his team were having a picnic when Team Sonic showed up, having been invited to this location. Soon after, a stranger appeared, a Tanuki calling himself Dodon Pa. Introducing himself as the one who sent the invitation, Dodon Pa told Team Sonic that they would be racing as a team in the most advanced cars he could create in a Grand Prix that would test their limits. After Team Sonic agreed to join Dodon Pa's Grand Prix, Big thought this sounded like fun and asked Dodon Pa if he could come along on his spaceship to Planet Wisp where the first race awaited. When Dodon Pa allowed Big to join them, Big's teammates decided to come along with him, making Team Rose official competitors in Dodon Pa's Grand Prix.
For the races, Big received the Frog Cruiser to race in. As the races progressed, Big steadfastly believed that Dodon Pa was nice, whereas the others began to grow suspicious about the Tanuki's motives. Nonetheless, Big enjoyed the competition. Between the races later on, Big caught Tails talking to someone, but was convinced by Tails that he was talking to himself. Soon after, Team Vector joined the Grand Prix. Not long after, Big learned that Dodon Pa had the technology to sent objects through space and time. While this made the others more vary of Dodon Pa, Big merely thought it made Dodon Pa seem "cool". Not long after that, Big and his team were joined in the competition by Team Dark and Team Eggman.
While waiting for the next race, Big and his team were radioed by Tails, who instructed them to join Team Sonic and Team Dark on the racetrack in order to help them take down Dr. Eggman, who had intruded on the two teams' race in order to compete against them on his own as a "special guest" (which Dodon Pa permitted despite knowing it was a lie). Though Big would rather "teamfish", he answered Tails' request. On the racetrack, Big helped get Amy into position using the Skim Boost. He then joined forces with the rest of Team Rose, Knuckles, Tails, Rouge, Omega and Team Vector. Together, they surrounded Eggman on the racetrack before delivering a massive beatdown on the doctor with their combined Wisp power-ups. However, Dodon Pa was too busy watching Eggman's beating to see who crossed the finish line first.
As the heroes' hostility towards Dodon Pa grew, Big had the word "eliminate" explained to him by Omochao after Omega suggested eliminating Dodon Pa when he seems to be in cahoots with Dr. Eggman. Big, however, could not understand why everyone seemed mad at Dodon Pa. Amy tried to explain this to him, but Big failed to get her point. When it later seemed like Dodon Pa was giving the heroes' secrets to Eggman, Big tried asking Tails of what made them think that. However, Big did not understand the point Tails was trying to make. Later, just as Big was driving Knuckles nuts with his talk about Dodon Pa being nice though, Big brought up an important point: Dodon Pa was working with the Wisp, and Wisps only like nice people. This simple statement from Big made the heroes reconsider their opinion about Dodon Pa. Soon after, Big noticed, much to his dismay, that Eggman had recruited Metal Sonic for his team. Later, just before another race, Big was with his team when he saw a big guy hiding in the shadows. However, his short attention span meant that Amy did not take his observation seriously. However, Big soon saw the big guy after another race, who turned out to be Zavok, whom Eggman promptly recruited for his team. When the races later took their toll on Amy, Big suggested they could go on a fishing vacation after all this. Later, Big was proven correct about Dodon Pa when it was revealed that Dodon Pa was a good guy and that he was using the Grand Prix to gather information for his corporation's Ultimate Energy Engine, which Dodon Pa wanted to use for philanthropic purposes,
Soon after, Big saw Dodon Pa get kidnapped by Eggman and his henchmen, who took him to the Final Fortress. After telling the others about this, Big went to the Final Fortress with the others to rescue Dodon Pa. There, Eggman had them compete in a number of races with Team Eggman and his army of Eggpawns in exchange for Dodon Pa, not knowing Eggman was using them to gather the Ultimate Team Energy needed to finish the Ultimate Energy Engine. Once the engine was complete, Eggman stole it from Dodon Pa and incorporated it into his Death Egg. Big and his crew subsequently faced the Death Egg, and beat it in a race. However, the Death Egg soon after went crazy and drove into the Final Fortress's core. As the Final Fortress crashed, Big and his companions were forced to abandon their cars and evacuate the airship while Team Sonic saved Dodon Pa. Down on the ground, Big was reunited with Team Sonic when they arrived with Dodon Pa. Just as the Grand Prix seemed over since the cars had been destroyed when the Final Fortress crashed, Dodon Pa decided to give everyone new cars, thus allowing Big and his friends to race once more.
Other game appearances
Big was a playable in Sonic Shuffle as an unlockable character, however he is no longer available as the online connectivity for the game was shutdown.
Sonic Adventure 2
In Sonic Adventure 2, the player can see Big in cutscenes by simply pressing the basic buttons at a certain point (or simply button-mash until he shows up).
Big first appears in the intro for Hero Side, peeking out of the G.U.N. helicopter when Sonic is talking outside. When Sonic and Shadow meet, Big will be found circling around the fallen Big Foot. In the cutscene when the Egg Golem first appears, Big will appear on the other side of the door. Big's last cutscene cameo in Hero or Dark Side is thrice during the final Knuckles and Rouge encounter, where he appears in the background. Big appears in two cutscenes in the Final Story - in the intro where he drops down confused with Eggman, and twice with Amy before she decides to confront Shadow. In addition to this, Big appeared in every level of the game (bar Route 101 and Route 280), and appears twice in White Jungle and for each of the five characters in Cannon's Core. On top of that, he appears trapped during the first Sonic vs. Shadow fight, and sometimes appears in other locations in an action stage's hard mode. He is also seen in some stages though it's very hard to find him.
In Sonic Adventure 2: Battle, Big's cameos were drastically reduced. He no longer appears in the game's levels (sometimes being replaced by a Ring), and does not ride the Egg Walker in multiplayer (he was instead replaced by Dark Chao Walker). He was also removed from the Hero Side cutscenes, but still appears in Dark Side and Final Story, as well as the occasional Chao drawing. The 2012 re-release returned most of Big's cameos except for Wild Canyon and Hero Side, and the Dark Chao Walker still replaces him.
Big has cameos in Sonic Battle as well. Players can choose to link four Game Boy Advances together using link cables to play multiplayer games with only one game cartridge. In one such game named "Soniclash!", Big can sometimes be seen fishing as he sits on the platform where the other characters battle.
Big makes a cameo appearance in Sonic Rivals as two collectible cards. Froggy also has one.
Sonic and the Secret Rings
Big has a gallery section in Sonic and the Secret Rings. He appears in several missions in each level which usually mounts to two, if the player waits in the certain area for a few seconds Big will appear and a page will be unlocked. In each page it will feature him doing things will befriending a skeleton or lining up in a row of gargoyles and feeling out of place.
The cameo appearances are as follows:
|This is the Splash Jump practice mission 16, unlocked after Sonic learns the skill at level 42. The player should Splash Jump onto the top platform bearing a platinum Ring, then wait for a few seconds to see Big appear swimming through the air.|
|On the strip of land where pillars are rising out of the ground, the player should brake for a few seconds before they jump over the second falling pillar. They will see Big waving at them behind a shrubbery at mission 1.|
|After running down the dinosaur, the player has to brake for a few seconds on the grassy area as they get near the flower spirit. They will see Big holding his head in mission 6.|
|When the player gets to the river, they have to ride the log into the flying pot. The player has to fly as high as they can, jump and do a Homing Attack into the Spring. They will jump automatically for a bit and then land on a grassy, circular platform with a genie egg. The player has to brake for a few seconds, and they will see Big waving at them under a dinosaur in mission 9.|
|In mission 2, as the player starts the level, they have to do a Homing Attack into the tank that the Golem is holding. They should then attack its head, and then attack the magic carpet. The player has to brake for a few seconds after getting onto the pathway, and they will see Big on a torch lamp on the ceiling.|
|When the player sees the Golem, they have to jump onto the cylinder and brake for a few seconds. They will see Big sitting on the edge of a pit of lava in mission 8.|
|As the player approaches the lever to switch the second mirror, they have to brake for a few seconds. They will then see Big balancing on top of a tower in mission 5.|
|At the start of Mission 10 when the player comes to the group of gargoyle statues, they should stand next to the one in the middle for a few seconds. They will see Big hiding behind a statue next to Sonic.|
|When the player reaches the catapult after flying on a cannon rocket thing, they have to raise the catapult halfway and flick the Wii remote to (hopefully) land in the crow's nest. They have to brake for a few seconds and they will see Big sitting on a mast farther away in mission 1.|
|When the player comes to an area with two very tall platforms, they have to attack the disappearing-reappearing genie on the first tall platform, and then land and brake on it for a few seconds. They will see Big far away, looking at some type of fort.|
|In the eleventh mission, when arriving at the pillars, the player should stop and remain still for a few seconds and they will see Big covering his head in the area where Sonic battles Erazor.|
Mario & Sonic series
Mario & Sonic at the Olympic Games
In the Wii version of Mario & Sonic at the Olympic Games, Big appears as a non-playable character. In this game, he serves as a referee in the Athletics and Rowing events. He can also be seen behind the podium in the Athletics events during the awards ceremony.
Mario & Sonic at the Olympic Winter Games
In the Wii version of the game, Big appears as a VIP member that gives the player 100 Star Points when spotted among the audience. In addition, a Mii costume based on Big can be unlocked in the game by first spotting Big as a VIP member during events and then buying the costume in the boutique.
In Adventure Tours mode in the Nintendo DS version of the game, Big also appears as an interactable, non-playable character. Here, the player can meet him in Polastraits, where Amy has to talk to him when Big expresses confusion about the "sign" next to him. Amy tried to explain that each mission's details were written there. However, Big still did not understand and Amy had to try out the mission and complete it to make him understand. Said mission turned turned out to be Alpine Skiing GS. Afterward, Big still did not understand what a mission was. Regardless, he gave the player a chest containing the Spark Luge as a reward. In addition, during the ending, an unlockable photo of Big with many of the other hosts alongside him can be obtained.
Mario & Sonic at the London 2012 Olympic Games
In the Wii version of the game, Big does not appear in person. However, a Mii costume based on Big can be unlocked in the game by playing for a total of three hours in Single Event Mode, after which Charmy will send the player the costume in the mail.
In the story mode in the Nintendo 3DS version of the game, Big makes an appearance as a non-playable character. In this mode, Big came to Stonehenge in search of Froggy. There, he cushioned the impact from Omega with his body when Omega was repelled by a Magikoopa. Thanks to his impact with Big though, Omega regained some of his previously damaged memory files. While, Big did not understand what Sonic, Tails, Mario, Luigi, and Toad were talking to him about in the aftermath, he did not care too much about it. Soon after, he found Froggy and took him with him. Later, Big appeared at the opening ceremony of the Olympic Games.
In the Nintendo 3DS version of the game, a badge of Big can also be obtained from the badge machine.
Mario & Sonic at the Sochi 2014 Olympic Winter Games
In Mario & Sonic at the Sochi 2014 Olympic Winter Games, Big does not appear in person. However, a Mii costume based on Big can be unlocked in the game.
Mario & Sonic at the Rio 2016 Olympic Games
In the Wii U version of Mario & Sonic at the Rio 2016 Olympic Games, Big appears as a non-playable character. Here, Big can be found on Copacabana Beach in front of the entrance to the Pousada, where the player can talk to him in order to view the current collected items, change the player's Mii's outfits, change the background music of events, view the player's profile, change various settings or view the game's credits once all level three tournaments are cleared. Also, a Mii costume set based on Big can be unlocked in the game. However, it must be collected in two separate parts, each with their own stat changes.
Super Smash Bros. series
Super Smash Bros. Brawl
In Super Smash Bros. Brawl, Big appears as a Sticker:
|Image||Name||Page||ID||Area of Effect||Effect||User|
|Big The Cat (Sonic Adventure Director's Cut)||Big the Cat (Sonic Adventure Director's Cut)||275||689||Battering||Resistance +14||Everyone|
Super Smash Bros. for Nintendo 3DS
In Super Smash Bros. for Nintendo 3DS, Big appears as a trophy:
Super Smash Bros. Ultimate
In Super Smash Bros. Ultimate, Big appears as a Primary Spirit with the following characteristics:
|Image||Stat statistics||Spirit Battle|
|Base||Max||Enemy Fighter(s)||Enemy Power||Stage||Battle conditions|
|Giant Incineroar||2,600||Windy Hill Zone (Battlefield form)||Rule(s): Hazard: Slumber Floor
|Big the Cat||Neutral||★ (Novice)||"Open Your Heart"||
Sonic and the Black Knight
Sonic Chronicles: The Dark Brotherhood
Big is a character in Sonic Chronicles: The Dark Brotherhood. He still maintains his somewhat slow and dim nature, but is an invaluable ally due to his ability to safely make it through harsh environments with his Invulnerability. He has a side quest revolving around finding Froggy's friend Norton. In battle, he has superior strength, but slow speed, being granted only one turn per round.
Sega All-Stars series
Sonic & Sega All-Stars Racing
In Sonic & Sega All-Stars Racing, Big appears as a playable character. In the console versions, the player needs to pay 7,500 SEGA Miles to unlock Big, while in the Nintendo DS and iOS versions, the player can unlock him with 40,000 SEGA miles. For the racing in this game, he is driving the Green Hopper, a small moped with a Froggy paint job.
In gameplay, Big has great speed and turbo-boost, but low acceleration and maneuverability. His All-Star Move, "Giant Froggy", lets Big summon Froggy, who grows in size immensely and begins hopping down the track, trampling on anybody in its path.
Sonic & All-Stars Racing Transformed
Big has a couple of cameo appearances in Sonic Generations. He appears as a neon sign in the Casino Night DLC in the console/PC version. He also appears as a statue in the hidden Statue Room and in footage during the credits.
In Sonic Dash, Big makes an appearance as a playable character. In this game, he can be unlocked after being purchased online for $3.99 USD or in special events.
|Image||Affinity Bonus||Upgrade Profile|
On 20 December 2019, Big was rereleased as Santa Big, a character previously featured in Sonic Forces: Speed Battle, as part of a Christmas event.
|Image||Unlock Requirement||Upgrade Profile|
Collect 500 Santa Big tokens
Collect 250 Santa Big tokens
||Big loves eating, sleeping and fishing. He leads a peaceful life with his best friend Froggy, but is always ready to leap into action to help his pals!||
During the "Birthday on Windy Hill" event, Big came to Sonic's birthday party with Team Rose and Froggy, only for him and his team (except Amy) to get kidnapped by Dr. Eggman when he attacked with his Death Egg drones. Thankfully, Team Sonic came to their rescue and a grateful Big went back to the celebration where he wished Sonic, after he returned from defeating Eggman, a happy birthday on behalf of him and Froggy.
During "Tropical Coast Event", Big had come to a beach resort with Team Rose and Froggy. While fishing, Big and Cream met Team Sonic who were looking for Eggman. At the same time, Big caught something and discovered it was Eggman, having accidentally fallen into the water. Once the scientist revealed he planned to turn Mother Wisp evil, Big and his team joined Team Sonic and helped them foil Eggman's plans.
Sonic Forces: Speed Battle
Big is one of the playable characters in Sonic Forces: Speed Battle who was added to the game's roster in the version 1.8.0 update. As an Easter egg, whenever a player chooses to play as Big, they will be able to see Froggy at the end of the track. Big has the following gameplay characteristics:
|Chopper Chomp||Umbrella Boost||Lilytrap|
On 25 December 2018, Big was re-released as "Santa Big", a variant character of Big dressed in a Santa Claus costume, as a part of the version 2.7.0 update. This character has the following gameplay characteristics:
In Sonic Racing, Big appears as a playable character. He becomes available upon reaching League 3.
|Frog Cruiser||Skim Boost||Big muscles, big heart, big cat.|
- Sonic Channel (Japanese). Characters: Big. Sega. Archived from the original on 25 May 2019. Retrieved on 3 July 2015.
- Sumo Digital (23 February 2010). Sonic & Sega All-Stars Racing. PlayStation 3. Sega. Area/Level: Big the Cat's profile card.
- Devra Newberger Speregen (2016). Sonic: The Ultimate Character Guide. Scholastic. p. 37. ISBN 978-1338033243.
- Team Sonic Racing One-shot, "Team Sonic Racing"