Hempuli (FIG, BulletZORZ) plays with time in Timerocketxby (direct download), a platformer where you can stop the clock and then use frozen objects to your advantage. It’s a great mechanic that is sadly underdeveloped in this relatively short experimental game. Make an expanded version and polish it up, man!
Note: Your “ghost” is not useful to the gameplay and is just for kicks.
(Thanks, mountainmohawk!)