Turbo is not allowed. Kega Fusion is the recommended emulator.
25 robot masters rules:Timing starts at "Press Start" on the Mega Man 1 title screen and ends on the final hit on the 3rd Robot Master in Wily Tower. You may swap games after the final hit on the last Robot Master in each game with a soft reset. Timer is not paused between games! You do not need to fight Buster Rod G twice. You must play the games in order (1, 2, 3, Tower). 1-3 must be played on a clean save file, and Tower must be played on a file where Tower has not been played. US version times will not be converted to account for text speed differences. Play on the Japanese version for optimal speed.