Hands down one of my favorite concepts marred by just a couple little design missteps.
I love the superhero theming, I love the simplicity of the core loop, this could be prime time-waster material. It falls short a little bit in the controls.
The mouse isn't constrained, meaning that while my in-game cursor stayed put and behaved, my real cursor could go any which way it pleased, often to the detriment of my little superman. I suspect this is the culprit of the occasionally-dodgy edge scrolling I was experiencing, though I can't be 100% certain.
The other main movement issue I had was that the in-game cursor was tiny and hard to pick out from the background, making keeping my mouse in the game in the first place a chore. Making this easier to spot while gameplay was at peak hectic would go a long way towards improving the playability of the game as a whole.
Don't get me wrong, I pick on these things out of appreciation; there's potential here and I'd be super jazzed to see a more polished version out there in the wild somewhere.