Very cool demo, i love your pixelart, but a few bugs:
- The green boss's attacks hit me every other time. Sometimes I don't move and stay in the middle of the room, the boss passes through me without damaging me and sometimes it hits me, its random. At first I thought there was a frame of invincibility when I attacked him with the melee weapon with the right timing, but nope.
- The blue enemies (skeletons) reappear when you go to the menu after killing them.
Good luck for the future