Ok, the concept is fun and the game is really simple. I was kinda disappointed with the inconsequent style and with the ghosts being basically the same and I got a bit salty when I killed a ghost and then semi automatically went back to the menu because the cursor was in the button's place when I was finishing the ghost with my click.
I'd give it 3,5 stars, but that ending screen really bought my heart, so here is a four ;)