Not bad for your first game! Graphics looked good, just a tad small. It was definitely a frustrating game though, as I hard a very hard time making it even to the first few platforms. The jump and guns are very underpowered, so you have to spam all three to make it, and with no in air control it’s very hard to do. Powering up the guns is a bit too slow as well, and it’s much faster to just alternate firing, though how far you get propelled seemed to be random.
Overall though nice job! Good luck on future game dev!