A new alien hedgehog arrives and crashes the party!

Sonic is back! And yes, he's still wearing the costume!

Sonic and friends combat Nazo for one final battle in this climatic conclusion!

Sonic and the Halo universe collide!

Use cannons, bombs, and jetpacks to get as far as possible!

Battle through waves of enemies... again. Now with upgrades and stuff!

Battle your way through waves of enemies.

Contains swords, robots, ninjas, guns, explosions, pirates, kittens and boobs.