Very simple, but pretty fun and feels polished.
The sound effects are nice but without pitch shifting, they got very tiring. The visuals are simple, but feels cute and readable, overall very aesthetically pleasing.
On the gameplay side, I got to wave 9, so maybe there's some skill issues there still, but I didn't like it when the hazards can spawn below you, and it's hard to move out the way.
Overall a pretty nice game, very impressed for 24 hours of work :)