Very cute! I like the monster designs a lot and their varied attacks that linger for a while. Enemy 2's tail attack reminds me of "pokemon slaps", haha.
After a while I found it fun to try to figure out how you detect loops and break the system a bit. I found that the line persists indefinitely and you can take damage even long after the white part of the rope has disappeared. I assume that you check when the angle to the monster has reached nearly 180°, at which point the 90° cone opposite of the monster becomes the damage zone. This means that you can draw a big L shape, go back and spin in the first corner to deal infinite damage from afar. I ended up playing the game a lot!