I liked the "you get bigger/smaller" aspect, but needed breaks in the waves. It wasn't really possible to collect the powerups because the enemies just spawn too quickly. :( There was an exploit though where if you fly off-screen they'll pile up in one place and then you can take out like 50 with one shot. For some reason the controls confused me--maybe I was expecting inverted because it was a flight-type game, not sure. But I did like the whole thing about getting bigger/smaller.