Had a real good laugh with this one !
The gameplay is really solid contra style run and gun, the "bullets" pop out nicely and are clear to see, and i like the spritework, the stapplers as a weapon is also a nice touch XD
If i had to nitpick i'd say the jump arc is a little floaty and the stapler shots not going in a straight line is also a little awkward at first, but once you get used to it it's not that bad, plus i like that you allowed for 8 directionnal aiming.
Regardless well done overall :)