one way to get as many action points you want is to first, have your castle defeated, then click carry over or continue, then save game, then go to the title screen and go back into the game and repeat as desired. each time repeated is a single action point.
Pretty fun, but gets boring after like 5 minutes. It's kind of like Bubble Tanks with the WASD controlled tank that you can upgrade by killing other tanks. If you think about it, this game is pretty much a combonation of Bubble Tanks and Upgrade Complete. I give it a 2/5.
 "This is the Only Level"){kind=icon}
 "Mitoza"){kind=icon}
 "Burrito Bison"){kind=icon}
 "Icy Gifts"){kind=icon}
 "box car"){kind=icon}
 "Don't Shoot The Puppy!"){kind=icon}
 "endeavor"){kind=icon}
 "Elona Shooter"){kind=icon}
 "Shoot Pixels"){kind=icon}