Hahaha, I'm so happy you enjoyed it!
I saw a possibility where players would ignore the other weapons, and just use the default guns, so I didn't risk making them infinite or too strong. Infinite weapons do also clash with the stock mechanic. I compensated by scattering a few free guns around the arena.
You are right, though; they can and should definitely be balanced better, and I plan on doing so once the jam is over.
Thanks for the feedback, and thank you for playing =]