He is also a frequent competitor and participator in the Games Done Quick charity events. He has completed some of the most difficult user-created levels in the game, such as 'Pit of Panga: P-Break' by PangaeaPanga. Today, he is better known as a player and level creator for Super Mario Maker. In 2015 he accomplished the world record for the game at 1 minute 41 seconds. The record was unofficially broken on an emulator a month later by PangaeaPanga with a time of 1 hour 38 minutes. On February 9, 2015, Diamos achieved the world record for Super Mario World on the Super Nintendo at 1 hour 47 minutes and again on February 18 at 1 hour 41 minutes.

On Aphe achieved the world record for Yoshi's Island, completing the game in 2 minutes 57 seconds. In May 2013, Diamos completed a '100%' run of Yoshi's Island in 2 hours 48 minutes on stream and in front of a live audience at Awesome Games Done Quick 2013.

and 'NxCy,' completing the game in 1 hour 59 minutes. On February 13, 2013, Diamos created the first tool-assisted 100% speedrun of the game along with Lennart 'Baxter' W. This record stood for a year until 'zewing' accomplished a 1 hour 48 minute 40 second run on February 11, 2013. First becoming known for his speedruns of Super Mario World 2: Yoshi's Island on the Super Nintendo, Diamos achieved the world record in the 'warpless any%' category at 1 hour 49 minutes 16 seconds on Febru and again on with a record of 1 hour 49 minutes.

Contra nes speed demos archive