i dont know about you guys... but i just did hard challenge before the other two... all you gotta do is pole vault then up-n-down into another pole vault.
the 'feature' where you turn invincible after being hit needs to be removed....
once you get helicopter you can be right in the middle all the bullets the entire level and never go below 300 armor.
Ok so this guy dressed as robin hood can throw gigantic lumps of iron like its nothing, and then invent a handgun when everyone else is still using magic, clubs and dragons? That makes sense i guess...