Please have rewards granted as soon as the game ends, instead of having to press a button to accept it. This will prevent loses of ressources from when game crashes right after the fight, as it often does.
As a completionist, I must say I am extremely disapointed by the fact that I can't purchase all upgrades, even with both a 3 gem rating in all stages and all the badges. It still comes 1 gems short of buying the last upgrade.
This game is extremely unfair. There is a bug where killed enemy ships just stay on screen and still shoot at you, yet you can't do anything about it. Worse even, they stay onscreen after a game, and they become active again once the game restarts, giving your enemy a head start!
Do you even test these game?
It has the same mad rythm and feeling of doom as Canabalt. I don't know why I'm rushing towards the sun, but it sure as hell feels good.
Great work there.