Great game! Though a few things I think should be changed:
1. The "Bee-Drill's" sword shouldn't be able to penetrate the ground. (Make it like the laser sword.)
2. Explosions shouldn't work through walls. (A raycast loop could fix this.)
3. You need a time grenade. (I mean that's just cool, just slow velocity when on inside the grenade field.)
Other than that good job!