Not the best I've played...
Managed to keep me busy for 2 minutes though. As of that time, I had completed it.
(Yes, that means it's short...)
Gotta be honest though, as the weapon upgrades weren't half bad.
But what the heck did you do to that poor cat? Looks like a cross-over of a cat, a fly and a caterpillar.
A well-deserved 6/10 though
Improvements that could raise the score would be.
1) More levels.
2) More colours.
3) Dynamic background. (i.e. moving clouds...)