A great entry! At first I thought the only twist is the different control scheme (mouse instead of a keyboard), but then the first enemy showed up. I didn’t really see what was happening, just that my controls have gotten all weird. Perhaps some more prominent effect focusing players attention to the mouse cursor being “kidnapped” would help here.
I also think the main mechanics could be introduced much faster. The first section with the WASD movement is probably not necessary, it only delays the main mechanic introduction. The enemy shows up pretty late, too. For that I think it might be a good idea to add some level objects that interact with the cursor. Maybe something like magnets that pull the cursor in when it gets too close, or fields that push the cursor in a specific direction if it enters them. The player could get used to the idea of things influencing their mouse cursor before encountering the first enemy.
Overall, it’s a really well done entry. I love the lighting effects, the platforming controls feel pretty good. Good job! ;)