YouTube guitarist FamilyJules7X enjoys making metal covers of his favorite video game themes, so he put together a medley of 50 rapid-fire clips that go by so fast it’s impossible to pick them all out. That doesn’t mean you shouldn’t try. No peeking, now.

Some video game themes are so iconic that even a few seconds of distorted medley is enough to identify them. Others, not so much. I hit play and minimized the video the first time around (thanks to Adriana for the tip), and I maybe picked out 15 of the 50. How about you?