Many thanks!
Haha, I like the idea of actually you being the uninvited guest! Fits very well if you summon the ghosts regularly :D
I know that it's a kind of a game you either like to play or not. Regarding the leaderboards: There is actually an issue with the servers I am using...and it started with the submission deadline... lol.
Hope it'll run again within the voring period ao people still get a peak on the scores.
For game play itself: It is just minesweeper....instead of you don't die immediately when clicking a "mine" and you are able to "free" (reveal) flagged, and thus, mine (=ghost) tiles.
Hope you figure it out at get a highscore ;D