The core idea is really strong but the way it's executed right now is somewhat lacking.
The hitboxes for both the the player's and the enemies's actions are really small and confusing, combined with the somewhat slippery movement it feels like there's not option but to get hit by the enemy when you go for a melee attack.
The numbers also seem just a little too low. The idea suggests high risk high reward gameplay but there's no way this can actually happen when the player starts with 600 value and an attack for a starting weapon only costs 3.
My suggestion would be to make every action have more impact. Work on the game feel so that the hitboxes are bigger and enemy attacks are more well telegraphed and make it so everyone deals more damage and the player's attacks cost more. If the enemies have good and interesting drops, the player is driven to make difficult decisions about whether or not a battle is worth it and the game becomes way more interesting.
Overall, great job on the game, it has a lot of potential if you keep working on it after the jam is over. Good luck!