Casey Alvis (Altima Mantoid)

Casey Alvis, also known as "Altima" or "Altima Mantoid," is a Doom speedrunner in the United States. He holds a few Doom Compet-n records. Currently, he has a collection of Doom, Doom II, TNT Evilution, and Plutonia Experiment playthroughs on YouTube. He continues to upload Doom speedruns to YouTube.

At the end of 2011 he began to upload the currently standing Compet-N records to YouTube. He is currently the sole maintainer of the channel. The official Compet-N channel can be found here.

His personal channel can be found on YouTube, here.

Ultimate Doom and Doom II

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