You might want to add a mute button. Some of the players here have a kneejerk reaction to 1/5 when there is no mute button.
I also suggest quick ingame instructions upon starting up the game - I had no idea I had money or upgrades!
Next to that is the fact that the ship is rather wide. Have you considered doing one hitTest for the wing, and one for the main body? I dislike getting hit on somewhere that doesn't really exist. I also see that in the background, there are some white specks - could you try to take them out? All in all, 4/5.
Oh god WTH you get blasted to bits if you don't watch out. You ought to give them a bit more delay, and allow the player to see the entire screen - else you get shot by invisible enemies.
I have been recieving shouts and reports that stat-potions bought from the potion shop don't increase HP/MP, as opposed to the potions from dungeons. This is because the potions in dungeons have been left to ferment, whilst the potions in the potion shop are made on the purchase. (Now for the real explanation...) Also, they are quite overpowered as is, giving you bonus damage for so little money.
Guys - the game does everything to keep your saved games where they belong. What's more likely to have happened is that you, or another person who has access to the computer, or maybe even programs on your computer (CCcleaner is a common cause) that delete your save files. The game doesn't delete it, unless you were so friendly to go messing with the files.
kreds would be a waste methinks, since you need like $25 in kreds before you get payed. I think I'ld like people telling their friends about this game more, since that pays by itself ^_^ all people get a free internet cake! (Which is not a lie)