This was a really fun game. Very well executed.
And despise its extremely minimalistic graphics, they were very visually appealing.
I would add a restart button for the levels, because sometimes you already know you messed up, and there is no way to win the level, but there is a lot of time left for the counter to go down. So it's just a dull waiting.
Either way, the game is really entertaining and I liked that.
Good job!
PS: not everyone has 7-zip, so try uploading a simple zip file next time, which is a lot more common for everyone to have.