I'm sorry the game turned out too easy for you, but that's most likely because you're simply too good at games. :D
Jokes aside, some playtesters had trouble with the difficulty, and I didn't want it to be a suffering for more casual gamers. But making the health pickups disappear is a great idea.
I'll definitely consider adding some extra levels, which will be made for real epic gamers! :P
But most importantly, thanks for the feedback!