Pretty damn good

A great idea
Personally I think the endling was weak like you said
You should of had paper throw rock at scissors and the next scene he's in the bed next to paper :D

Anyway good job man , keep up with the original ideas

Too tell you the truth

This is really good.
I wouldn't mind a sequel
All this needs is a bit more of a story , the animation style pinned down and bam , you have a hit
Go for it man!

Cowbell

Needs moar cowbell
Give it moar and ill give you 10

Health bar doesn't go down,
gameplay is more suited to a twin-stick shooter,
hard mode is exactly the same as easy, just with more health,
there is no grace period at the start so before you have a chance to know what's about to happen, you can get shot.

Probably needed a little more playtesting and a unique selling point.