Great but needs work
One of the best bunnkill fan games I've played honestly!
But get some help and you could make this into a long and great game.
Fix the walk into a run and have some health bars maybe on the enemies.
Explorable ares would be a great idea, again get help to make that so it'll be pro.
A bit more combos, but mostly think about areas instead of just one constant place, wave after wave. Also some health would be a bit nice, along with upgrades and other things, maybe even unlockable characters. I think if you get others to work on this with you and a bit more effort that you could make a great fan game. Again it's a lot better then the ones I've played.