Easy way to restore power - Find a doorway that has a pizza slice or full pizza right at the beginning. Enter, grab the pizza, and exit. If you go back in the pizza will regenerate. Use this to restore power to all your turtles.

Remove Crushers in Level 3 - Go to the third level and hop in the Party Wagon. Whenever you see a pesky Crusher drive around, press SELECT. You will exit the car, and the Crusher should vanish from the screen.

Share Boomerangs - When you get the boomerangs, throw up to 3 of them in the air, then switch turtles, and have the new turtle catch them. The new turtle will be able to use those boomerangs without having picked up a boomerang icon.