Needs a LOT more work. Pushing shoot without a weapon in the second level made the game crash, art is very subpar, spelling errors and the option menu doesn't make any sense and has missing assets. Shooting that first block offered no feedback, so I wasn't sure if it was doing anything at first by shooting it. Moving platforms are not there yet, as you hav eto move on them to stay on them, rather than them transporting you forward, restarting the game doesn't save progress and makes the game assets act strange sometimes... Also, please... never start the game in fullscreen. Maybe give this one another look over, eh? It could be good.
Edit: Responding to the response, I'm on Windows 10.