Why did Starved Eggman turn red?

I recall drawing this back when that Starved Eggman guy was popular. I really don't do gore, so instead I drew a nightmare version of Mario that's dead set on stopping Bowser's

ArtStation - Starved Eggman

STARVED EGGMAN ATE SONIC ALIVE (THE WEIRDEST - MOST BRUTAL CURSED SONIC ANIMATIONS)

Starved Eggman over Eggman [Sonic 3 A.I.R.] [Works In Progress]

Starved Eggman threatens to eat Snively by cvgwjames on DeviantArt

Steam Workshop::Eggman & Starved (SFM PORT)

Horror Sans vs Starved Eggman : r/DeathBattleMatchups

Starved: A Sonic the Hedgehog Creepypasta, Spinpasta Wiki

Game Eggman, Villains Fanon Wiki