Nice!! Randomized wave survival with upgrade branches makes this a fun game to play and replay. I did have a very hard time reading the font, to the point where I felt like I didn't have enough information to make a decision at some upgrade screens. If you fix that and maybe also do a balance pass with enemy behavior (would sometimes get screens of entirely stationary enemies who couldn't hurt me because they shot in a straight line), you'll have something that feels great to die and retry to.

Good work!

your game gave me the retro vibe I had been looking for since childhood. it's very nostalgic! and I like it 

I really support your choice of game engine!

This game is great! It gets a really retro vibe from everything like the graphics and sounds up to even the gameplay itself. Also the saw enemy is really making me sweat...

Very old school GameBoy-escue to me.