P.J. DiCesare has some tricks up his sleeve that he shows off when he speed runs Mega Man 7.

For instance, using a variety of weapons on Spring Man – rather than the villain’s greatest weakness, the Slash Claw, exclusively – can save up to 4 seconds on your time.

It’s one of the ways the Rochester, N.Y., native finished the entire game in 41 minutes, 30 seconds, on Dec. 18, marking the second-fastest time ever recorded on the game. He also set the record for quickest to finish the game with 100 percent completion on Dec. 15.

“Every time you leave an area, you start to think, ‘Where can I have sped it up,’” DiCesare, 30, said after he finished the game in less than 50 minutes during the charity fundraiser Games Done Quick, which this year for the first time was held in Orlando. “I just like the mental simulation.”