Easily my favorite game so far. Great work!!! The only note I would make is to include a button to rewind a couple of seconds. There were multiple times where I accidentally moved too far to one direction and had to redo a minute's worth of set up. Good submission. I would easily buy a full version of this.
Viewing post in Ghostman jam comments
One thing you could do that is potentially easier than rewinding a set amount of time is to rewind to the last time you grabbed a heart or died. Every time you die or grab a heart, you can save the positions and states of all of the ghosts, boxes, etc. The rewind goes back to the previous state. Just a thought. Hope it helps!