Hey DarkBloodbane, checked this one out! I'm enjoying it, the UI in particular gave a really satisfying impression (like the music pausing and the sfx playing when paused), very nice. I like the concept, classic gameplay and upgrades you put.
The one major problem I have is that I can only shoot forward, despite the directional aiming animation still playing. I press and hold a direction and press Z, but it just cancels out and shoots forward instead. Because there is a level where you must use the up aiming to kill enemies, I got stuck :/
Otherwise great job!