StairwaysOfHeaven

Take turns going up to the place where the stairs are diagonally above.
If you go up the stairs or run out of time, the game is over.
Each time you climb the stairs, the remaining time fills up.

Turn to where the stairs are on the diagonal and go up.
It's a game over when you go up to a place where there are no stairs or when time is up.
Every time I go up the stairs, the rest of the time rises.