Well done on getting this out on your own! The aesthetic is fun, and I didn't mind the random firing direction (though maybe the target direction could remember your last faced direction, or even go full twinstick style). The first few playthroughs the second room was 20 enemies rushing me with no obstacles and it felt like there wasn't much I could do. Bad luck I think because I had a few good runs after that.
Upgrading weapons, loot and things would make this a compelling roguelike