University of Canberra, must be a prestigious one, very nice! The pixel art assets are pretty cool, the animation of the alien of the eye going red, reminds me of Wolfenstein 3D, Hans Grosse animation, when he shoots and his eyes go red. The coins remind me of Captain Claw, the treasure there who have the animation. And the star checkpoint, I've seen them somewhere, exactly like that. Where are they from? I've also heard the jump sound effect somewhere, in a flash game, if i remember. The purple asteroids you jump on, look kinda out of place, but maybe it works. Once i've seen it, i can't unsee it. Good luck with university!
Here's a video with me playing the game, in case you need it. Link expires in 7 days.
https://www.transfernow.net/dl/20241007Uezzq8wR