Thanks for the feedback! Yes, i'm not quite satisfied with these powerups myself, maybe some button presses( like 1,2 to sctivate those) would've made big difference. Although there're 'pauses' in waves where things get less intense for a while in which you are supposed to think about what power up to choose. As for rotation, with planets not moving at all you would lose intensity in keeping things out of asteroids way, i've tried stationary planets it made things too predictable and less emotionally engaging.