Love the graphics - the character gives me serious Johnny Bravo vibes. I would say my only complaint is the controls. Currently not super non-mouse friendly (probably a very niche problem as someone who doesn't always use a mouse). Rather than stopping time with the space bar perhaps allowing for shooting with that instead, or even a different key entirely? It would definitely reduce the range/direction that you can shoot in, but always something to consider :)
The only other thing is the directionality of the character. He changes directions when you use the mouse to point the weapon and fire, but if you use the arrow keys or asdw to move, the character doesn't turn based on the direction he's walking. For 24 hours though, I think you did great!