Yeah, I really wish I could have added a lot more juice, but I was fighting against the clock. I also realized that the weapons, such as the sword and club, register as collisions for the Player when activated right before the Game Jam ended. I'm looking forward to getting back to this sometime after the Jam so that I can fix those issues.
I really like your idea of adding more invincibility frames, there are some in there, but they're only there so that the spikes don't kill you within moments.
Thanks for playing!