Pretty fun little game (also we meet again!).
Gameplay:
The gimmick of picking up weapons and using them is a lot of fun. The game is quite a labyrinth to the point where I was completely lost (not a bad thing for this genre). I wish it was clearer how much health I have. I think it's going with the fps health regens over time, but it's not so obvious.
Art:
The art style works well and the procedural animation looks quite good for the enemies and lava.
Music / SFX
There was no music in the game (bugged?). The sound effects feel inconsistent with each other. The jump sound particularly sticks out and sounds odd when compared with the realistic sword swing. I feel either you should stick with a more realistic sound, or go with the 16-bit style without mixing them. Given the style, the retro SFX might be the play.
Good luck continuing the game.