The art, audio, and concept are top notch! You perfectly nailed the retro aesthetic and sound. People bring up Atari, but I kinda saw Colecovision a little bit. Idk, I wasn't alive back then.
I for the life of me could not clear the initial wave without failing once or twice, which showed up as 3 for me? Also, when restarting the game, it would keep my configuration of traps from the previous fail state. However, building up failure states and accumulating money worked. So I was able to progress. Once I did that, it became possible to progress.
All in all, I liked it, but I feel that could use a little tweak. Or perhaps it was a bug.
Good submission though! And impressive as a solo contribution too!