Well

It is a very good game concept, but there are a few problems with the game it self.

Firstly, as said below, the upgrades dont do much.
Secondly, theres a "finish game" glitch. you dont have to play the through all 5 levels to finish, all you have to do is play 5 leves, doesnt matter the order you do them in, just as long as you've completed 5 you "win" I dont know how this glitch would occure (as i didnt help with the programming) but if this were corrected so that you had to beat all 5 leves indivudaly to win, it would make the game better.

I came to the glitch by playing the first level 3 times (accedently) and was at the 3rd level when i "won"

Well...

I am only reviewing this to point out a big problem. When you replay old levels it causes progression through the game. Technically you can win by playing the first level 5 times. And after you win this way (even accidentally, you loose all of your upgrades. Something isn't right there. If you intended it to be that way you should let people know that they can only play 5 levels regardless of which levels those are.

Its ok.

Nothing much to it, and the upgrades hardly do anything.

Pretty good game

There is one bug, after I unlocked level 5, I decided to replay level 4 so I could upgrade the rest of the way. When I finished level 4 for the second time, it said "Congradulations" and it ended the game. I never did get the go through the final "chapter".

nice

needs more upgrades and you need to fix it where you can do lvl 1 5 times to win