This was a pretty good time!
A few notes: I noticed that in the later levels, the UI was obscuring some of the play field at the top. I also started getting confused between worlds when the elements would change appearance - Maybe the numbers could be color coded to stay consistent? The addition of flagging the landslides could also help some of the frustration; I noticed I was getting lazy towards the end because I didn't want to keep all the clues in my head. Other than that, this really scratched that "variety minesweeper" itch!