This definitely has a very unique feel to it, where instead of collecting some form of currency, the game is based upon destroying planets and farming resources to buy the new gun in order to destroy planets easier. My only issues are those that have already been said, as in the upgrades are very ambiguous with no knowledge on what any of the buttons do or how much they cost. In addition on purchasing the gun upgrade if you click the place where the button was the game crashes
Finally the fire button, I like how it gives resources on pressing it however the conditions that need to be met in order to claim the free 1000 resources are unknown and there is seemingly nowhere to find them.
Apart from the ambiguity however, this was a really fun and interesting game and concept.