Game was great and lots of fun. Upgrades were awesome and the cash flow was nice. A tooltip explaining the upgrades a bit more would be helpful. I prefer the fast guns and getting a slow plasmagun was a bit of a shock.
Did not much care for the lack of any checkpoint/save point. Got interrupted at one point and smashed all the normal pause buttons I know of and was unable to pause. I ended up dying and was very disappointed to find I would have to start from scratch with no money or upgrades.
Game would be awesome with checkpoints at each level at least.

Great game, though as the past two people have noted, a save or check point would have made the game much better.

awsome game i kinda agree withSilasMcD but this is kinda of like a sirvival game of sorts gotta see how long you can last without getting killed but awsome game 10/10 5/5

Sorry, but when a game gliche's on me when the boss is beaten, and I get hit when the game takes over my ship at the end scene before the next level, causing me to die right when the next starts, with no check points or saves, it just makes a bad game. I'm being generous too..

All I can think of to suggest is maybe dreaming up an extra level or two so you can get all the upgrades. Had to play through a few times to figure out which weapons worked best for me. Other than that AWESOMENESS. =]