Protip: Use lots of launchers, buzzsaws, and mines. Put the launchers and mines in a tight alternating pattern on the floor, then lay out the buzzsaws in a lattice in the air. If you space it right and get lucky, turtles will get stuck in a place between the ceiling and a buzzsaw, giving you tons of combo points.
 "Theme Hotel"){kind=icon}
 "I Don't Even Know"){kind=icon}
 "Epic Combo!"){kind=icon}
 "The Idle RPG"){kind=icon}