Hey, thanks!
Yeah, a lot of the issues you mentioned just had to do with a lack of time for the game jam. Melee weapons were supposed to have more unique properties outside of damage boosts, but unlike the ranged weapons where it was largely just changing the projectile type, we would've had to change how the melee attacks worked. Same with the boss. If we were to ever revisit this in the future, these are definitely all things we'll take into consideration for improvement.
Thanks for playing!