only reason i could do it for that long was it was very late night when nothing around could bother me. i often put on a podcast to listen to and play this game. this new controller i recently got lets me switch some buttons around to be drastically faster at putting in those codes. my best on the d-pad was round 60 but this new controller took me 100 levels further. after about round 15 the difficulty sorta caps out and it becomes endurance beyond that.