I had an absolute blast while playing Belu's Dungeon! It's been a long time since I played a Zelda-inspired game like this one!
As a pixel artist, I loved the visuals for the characters, UI, and props. The audio is pretty cool too! The overall theme is quite fitting for a dungeon title.
Lastly, the controls were smooth. Had no problem switching between weapons and picking up new ones.
In closing, the following points aren't criticisms, but merely suggestions:
1. I would implement a checkpoint system so the player doesn't have to start at the very beginning after each death. Sometimes, it felt like I was being punished once I lost all my items.
2. Having local multiplayer would spice up the gameplay.
3. I think your project should include game controller support (i.e. Xbox).
Can't wait to play Belu's Dungeon more in the future!