I found the game to be interesting as a rogue like. However, the art was a little incohesive. The Player model animation speed did not feel like it matched the player's actual speed. Around halfway into the second level I guess the monsters stopped spawning. I liked the style for the creatures and player, but it did not match the style of the backgrounds.
Also as a fellow dev the usage of the mouse is so minimal that you would have benefited more from moving the controls to the keyboard completely. Its probably just from my experience but I kept clicking on one side of the screen expecting the character to attack on that side when the player character was facing another direction. If perhaps you limited movement to the keyboard and made the actually direction changing by using the mouse then this would be a viable option other wise your moving a perfectly usable hand to some where the player can't access it.
Anyways thanks for making a Game Jam Game!