Sorry, but I found another bat uuhm bug: I filled the whole Sudoku but one field (because it would be a 5). Then I filled in the 5 because it was the only option left, so the Bat did its counterattack, which killed me. The game generated a new Sudoku (because the old one was filled completely) and went on. I couldn't do anything (because I'm gone) and the Bat cycled trough its cooldown/idle time, did nothing and idled again, cycling forever.