We have 2 cheats and tips on Android. If you have any cheats or tips for Asteroid Defense 2 please send them in here. You can also ask your question on our Asteroid Defense 2 Questions & Answers page.
Always upgrade your units as soon as you can as as a powered-up cannon can be as useful as two standard equivalents.
Keep an eye out for pick-up items as they drift down the screen, these pick-up items can be collected by tapping them with your finger.