whole grotto
if you beat a tower during tower rush, it adds the tower you have on your tower rush timer to both your total playtime and the tower playtime instead of the time it took you to beat that tower
example: if you have a tower rush with 10 towers, where you beat the 1st tower at the first hour, 2nd at the 2nd hour, 3rd at 3rd hour, ..., 10th at 10th hour, you'd get 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10(55) hours added to your total playtime instead of the 10 it took you to beat that tower rush
and your 10th tower would get 10 hours added to its playtime instead of the 10-9(1) it was supposed to have
cold arrow