Purple, gray, black, yellow
Boa-Boa  (, also spelled ボアボア Boa-Boa ) ? Boa Boa, is an enemy that appears in  . It is a mass-produced, caterpillar-based robot created by Sonic Adventure Dr. Eggman.
caterpillars, Boa-Boas are successors to the Caterkiller. They have purple and gray armor and a body consisting of nine segments, with the head on one end and a small tail on the other. Except for their head, all the Boa-Boas' body segments have hatches on both lateral sides that spit out flames.
Boa-Boa floating above
Sonic and Tails in Windy Valley.
and Sonic Adventure , the Boa-Boas appear in the following Sonic Adventure DX: Director's Cut Action Stages for each character:
In gameplay, Boa-Boas constantly glide gracefully through the air, spouting puffs of flame from their sides. In Sonic's chase, the player can attack a Boa-Boa from above or below using the
Homing Attack when it is not spitting flames (doing so will damage Sonic). Hitting any segment on a Boa-Boa will blow the entire robot up. When playing as E-102 Gamma, the player can take advantage of the Boa-Boas; for each body segment the player locks onto and hits, they are granted a Time Bonus.
The Boa-Boa's card in
. Sonic Rivals
, the Boa-Boa appears as a collectible card.
The Boa-Boas' name may be allusion to
boas, a family of non-venomous, constricting snakes. The appearance of the Boa-Boas seem to be mix of the Catakiller, Jr. and Fireworm.
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Sonic ( Super Sonic) | Tails | Knuckles | Amy | E-102 Gamma | Big | Metal Sonic*
Dr. Eggman | Beta ( Mark II) | Chao | Chaos ( Chaos 1, Chaos 2, Chaos 4, Chaos 6, Perfect Chaos) | Cream* | Delta | Epsilon | Froggy | Grandma | Mr. Know-It-All | Pachacamac | Tikal | Unnamed Sonic robot* | ZERO | Zeta | Animals ( Deer, Elephant, Gorilla, Kangaroo, Koala, Lion, Mole, Parrot, Peacock, Penguin, Rabbit, Seal, Sea Otter, Skunk, Swallow)
Adventure Fields Egg Carrier | Mystic Ruins | Station Square
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Sky Chase | Sand Hill | Hedgehog Hammer | Twinkle Circuit | Boss
Beat | Bladed Spinner | Boa-Boa | Buyoon | Cart Kiki | Cop Speeder | Egg Keeper | Electro Spinner | Fighter Aircraft A | Fighter Aircraft B | Gola | Ice Ball | Icecap's unnamed aircraft | Kiki | Leon | mechanical fish | Pirate | Rhinotank | Sky Deck's unnamed jet fighter | Spiky Spinner | Sweeper
Chaos 0 | Chaos 2 | Chaos 4 | Chaos 6 | E-101 Beta | E-101 Mark II | E-102 Gamma | E-103 Delta | E-104 Epsilon | E-105 Zeta | Egg Carrier | Egg Hornet | Egg Viper | Egg Walker | Knuckles the Echidna | Perfect Chaos | Sonic the Hedgehog | ZERO
Bolt of lightning | Climb | Dig | Flight Mode | Glide | Hammer Attack | Hammer Jump | Hover | Homing Attack | Homing Missile Launch | Jump Attack | Laser Gun | Light Speed Attack | Light Speed Dash | Lure Attack | Maximum Heat Knuckles Attack | Pick | Propeller Flight | Punch Attack | Rapid Tails Attack | Spin Dash | Spin Hammer Attack | Spin Jump | Tails Attack
Arm Punch | Bomb Attack | Bomb Gun Attack | Charge | Double Punch | Earthquake Attack | Electric Arm | Energy Ball Attack | Flame Thrower Attack | Guiding Missiles | Instantaneous Liquefaction | Laser Beam Attack | Homing Tail Slice | Inhale Attack | Marble Attack | Phantom Shadow Move | Punch | Quarter Attack | Scorpion Attack | Shockwave Attack ( Chaos 6) | Sonic Boom | Spin Attack | Spinning Spike Attack | Spouting Attack | Squash Roll Attack | Swing Punch
Gimmicks and obstacles
Bumper | Bumper Car | Cannon | Conveyor Belt | Crank | Dash Panel | Dash Ring | Drum Can | Explosion Trap | Fan | Flipper | Fountain | Goal Balloon | Hanging Bell | Helicopter | Hint Box | Hint Orb | Icicle | Iron ball | Jump Panel (plate) | Jump Panel (ramp) | Jump Ramp | Laser field | Lit Panel | Mirror | Monkey Detonation Switch | Orca | Power cube | Rocket | Satellite | Slot machine | Spring | Spring Catapult | Switch | Teleporter | Wide spring | Wind Path | Zip Line
Air Bubble | Capsule | Cart pass | Chao Egg | Chaos Emerald | Doll | Emblem | Emerald Shard | Employee ID Card | Item Box ( 5 Rings, 10 Rings, Extra Life, High-Speed Shoes, Invincibility, Magnetic Shield, Random Rings, Shield, Smart Bomb) | Key Stone ( Gold Statue, Ice Stone, Silver Statue, Wind Stone) | Point Marker | Ring | Sandboard | Snowboard | Sonic Token
Level Up Items Ancient Light | Crystal Ring | Fighting Gloves | Jet Anklet | Jet Booster | Laser Blaster | Life Belt | Light Speed Shoes | Long Hammer | Lure | Power Rod | Rhythm Badge | Shovel Claw | Warrior Feather
English voice actors
Ryan Drummond ( | Sonic) Corey Bringas ( | Tails) Michael McGaharn ( | Knuckles) Deem Bristow ( | Eggman) Jennifer Douillard ( | Amy) Jon St. John ( | Big) Elara Distler ( | Tikal, Station Square Train Voice, Default Menu Voice) Steve Broadie ( | Gamma, Pachacamac, Mystic Ruins Train Voice) Tomoko Sasaki (
Japanese voice actors
Jun'ichi Kanemaru ( | Sonic) Kazuki Hayashi ( | Tails) Nobutoshi Canna ( | Knuckles) Chikao Ōtsuka ( | Eggman) Taeko Kawata ( | Amy) Shun Yashiro ( | Big) Kaori Asoh ( | Tikal) Jōji Nakata ( | Gamma) Tōru Ōkawa ( | Pachacamac) Kaho Kōda (Station Square Train Voice) | Nobutoshi Canna (Mystic Ruins Train Voice) | Elara Distler (Default Menu Voice) | Tomoko Sasaki (
Believe In Myself | It Doesn't Matter | Lazy Days | My Sweet Passion | Open Your Heart | Unknown from M.E.
Sonic Adventure Original Sound Track (Digi-Log Conversation) | Sonic Adventure Remix | Sonic Adventure: Songs With Attitude Vocal Mini-Album | Sonic Adventure Original Soundtrack 20th Anniversary Edition | Passion & Pride: Anthems with Attitude from the Sonic Adventure Era
777 Slots Pinball | Angel Island | Auto Running | Black Market | Card & Pinball | Chao Adventure^ | Chao Garden ( Station Square Garden, Mystic Ruins Garden, Egg Carrier Island) | Chao Race | Chao Stadium | Chao in Space | Chao Machine | Chao Search* | Corkscrew loop | Debug Mode | E-100 Series | Egg Carrier | Egg Carrier 2 | Emerald Radar | Freeze | Life gauge | Mission Mode | Mystic Ruins | Shrine of Knuckles's race | Shuttle loop | | Sonic Adventure (LCD) Station Square | Station Square Police Department | Tails' Lab | Tornado | Tornado 2 | Transporter Machine
Sonic Adventure DX: Director's Cut ^Exclusive to Dreamcast version of Sonic Adventure