Simple fun game. I like the sfx and especially the music a lot, but sadly the song doesn't loop after it ends. Visuals and sprites could still be improved for sure, but I like the visual effects.
On the gameplay side, I think it's an interesting concept to weigh the choices. However, I thought the game was too slow at first, but by the second upgrade it got hard really suddenly, so maybe there could be more work on the balance side.