It's unfinished, but I think you're pretty close here. It needs menus and sounds but the core gameplay is working and working pretty well.
I like the character design and the sprites, although I'm slightly disappointed it's not the blue Ikea shark. It really, really needs sound, though. The visual effects are good but without the punchy booms to go with them it just doesn't have the same impact.
The gameplay reminds me of Pac-Man for sure, but also with a little bit of Bomberman. I found it too intense and too complex for me, but it definitely has that arcade feel FacemeltingSolos mentioned. I can handle a game where you jump around on a shark, or a game where you collect pellets, or a game where you dodge artillery, but not all at once. I think some people will have a lot of fun with this, though.
Any plans to continue with this?