Absolutely love this! The gameplay is simple but fun, the progression is neat and the visuals are well-done. I especially liked the mouse's "slicing" afterimage. Everything comes together nicely.
I'm not a fan of the charge meter's positioning on in the corner of the screen though, it would be cool if the mouse cursor itself had an indicator of charge readiness as it's a little inconvenient to have to look away from the cursor.
Awesome submission!