Soniclash! is the first, pre-unlocked minigame playable in Sonic Battle.
The minigame is centred around an arcade/pinball type gameplay, where players bounce around a pinball-like arena, rolled up in spin dash to knock each other off the ring. This mingame is only playable in multiplayer mode across four different Game Boy Advance devices.
- Big the Cat makes an occasional cameo sitting on the edge of the arena fishing.