An urban level with many springs and bumpers, resembling a pinball machine. There are many secret areas in this zone. Act 2 has two Robotnik signs (ends) and as such, can be ended through two possible routes. At the end of Act 3, Dr. Robotnik attacks with a spike-equipped craft that slowly removes the blocks Sonic stands on. Attack Robotnik while he is impaling a block, and try to get multiple hits in so you don't run out of terrain too fast!