Fourth Dimension Space (, also referred to as 四次元宇宙  Shi-jigen uchū ) ? Fourth Dimension, is the fifth and final  board that appears in .
Fourth Dimension Space is the realm where the dreams of everyone are stored. Upon arriving by airplane,
Sonic and co. discover that the whole domain will cease to exist unless Void is stopped, so they set out to gather the remaining Precioustones.
The entire board is built on the inside of a giant sphere with stars flying about and the pathways being a labyrinth, making traversing a tricky affair. Falling stars will periodically bop random characters on the head and accompany them. A player with a star must return it to its rightful home in one of the constellations to qualify for an
Emblem. This is the only quest that can be performed more than once per game.
If the player comes first, the next cutscene is shown, followed by the final cutscene, and then the credits roll.
List of Mini-Games
This is the most graphically intensive board in the game, so much that the already-excessive load times that is infamous for are made longer. Sonic Shuffle
Main article | Script | Staff | Gallery
Sonic ( Super Sonic) | Tails | Knuckles | Amy | Gamma | Big | Chao
Dr. Eggman | Lumina Flowlight | Illumina | Void | NiGHTS
Boards Emerald Coast | Fire Bird | Fourth Dimension Space | Nature Zone | Riot Train
Egg & the Chicken | Egg in Space | Frosty Rumble | Fun Fun Sonic | Great Escape | Jump the Snake | Over the Bridge | Number Jump | Over the Rainbow | Psychic Sonic | Shadow Tag | Sonic Gun Slinger | Sonic Live | Sonic Tag | Sonic Tank | Sonicola | Stop and Go | Thor's Hammer | Tractor Beam Tag | Twister | Zero G Snap Shot
2 vs 2
Bomb Relay | Bucket-O-Rings | Shoddy Work | Sonic the Thief
1 vs 3
Bungee Jump | Eggbot's Attack! | Gargantua | Manic Maze | Sonic DJ | Sonicooking | Wrong Way Climb
Croc-Attack | Final Frontier | Ring Lasso | Ring of Fire | Rapid Climb | Ring Tide | Sky Bridge | Sonic Parasol | Thru the Tunnel
Earth Quake | Sky Diving | Sonic Surfing | Stop the Train | Void Battle
Sonic Darts | Sonic Hi Lo | Sonic Slot
Climbing | Froggy | Gun | Hammer Jump | Hover | Light-speed Spin Dash | Light Speed Spin Attack | Lullaby | Maximum Heat Attack | Power Throw | Propeller Flight | Rapid Spin Attack | Roller Mode | Revolving Hammer Attack | Sonic Rumble | Spin Dash
Air Bubble | Card | Emblem | Magical Card | Ring
Forcejewel 1 Force March | 6 Force March | Barrier Amber | Battle Ruby | Blockite | Carbuncle | Chamelionite | Curse Opal | Deletite | Duplichaos | Fivealive | Foolmoon | Geasdain | Hi-Speederald | Hypnotite | Lose Quartz | Low Moonstone | Magnifire | Maharajite | Max-Speederald | Medium | Packlite | Preciousite | Reducite | Ringidium | Shield Quartz | Shuffire | Sonic-Speederald | Speederald | Stopnite | Swap Jewel | Teleport Ruby | Thief's Eye | Transfire | Turbo-Speederald | Warp Crystal | Warponite | Wastone
Maginaryworld | Maginaryworld Monsters | Mini-Event | Precioustone | Spaces ( Arrow Space, Battle Space, Eggman Battle Space, Event Space, Jewel Shop Space, Jump Space, Minus Ring Space, No Entry Space, Plus Ring Space, Precioustone Space, Quest Space, Revolving Space, Void Preciousstone Space) | Sonic Room | Spring | Temple of Light