The end actually scared me! XD Great game btw
I think it needs more content, I didnt find it hard, I think it has a nice level of difficulty and challenge. I think you shouldnt make it easier, but add more stuff to levels, like new ways of playing it, new challenges, new enemy types (with different behaviors), this kind of stuff. Ah, and it would be nice to see more player forms as you pick up way too much pink people.