I enjoyed this game overall. The tower defense concept was interesting, and I liked being able to choose the next type of weapon before each wave. It added some strategy and variety to the gameplay. The music and sound effects were also nice and fit the game well.
I also think it's a bit of a shame that the jam limitation, "You Are the Enemy", wasn't explored that much. The idea had a lot of potential, but it didn't feel like it had a strong impact on the gameplay or overall experience.
My main issue was that there doesn't seem to be a way to actually win the game. Even after defeating all the enemies, there is no ending or victory screen. The game simply stops because there is nothing left to do, and there isn't even an option to return to the menu. It left me unsure whether I had finished the game or encountered a bug.
Considering this was made in just 3 days, it's a decent result. Fixing this issue and adding a proper ending would make the experience much better.