Hard, but awesome!
And I like the variety of enemies and their varied actions, although in my opinion the big baseball throwers are unfair. (When I have upgraded my power 0 or 1 time total) I have to know where they're going to appear to have any chance to avoid getting hit by the baseball guys. The ball is fast, they throw it before I know they're there, and it's high so I need to double-jump to avoid it. (I am on iPad ... maybe on a different aspect ratio I would see them when they're farther away?)
I doubt I will make it very far unless I spend a fairly large amount of money. All the upgrades and power-ups are expensive given how slowly I obtain money (in the early stages). Although, by rating the game and trying the developer's superhero game I got what feels like a huge pile of coins, almost enough to upgrade both power and HP once (or HP twice).
The game is hard but it's awesome, packed with quality and good ideas. :)