Sigma Posting (Follow on BS)さんのイラストまとめ

Sigat

Source: Sagat
Street Fighter (Arcade) by Capcom

Sigpin

Source: Kingpin
Avenging Spirit (Arcade) by C.P. Brain

Wheel Sigator

Source: Wheel Gator
Mega Man X2 (SNES) by Capcom

Bubble Crigma

Source: Bubble Crab
Mega Man X2 (SNES) by Capcom

Robo Sigrat

Source: Robo Rat
Battletoads (Arcade) by Rare

Master Kongma

Source: Master Kong
Robo Army (Neo Geo) by SNK

Trunksigma

Source: Trunks
Dragon Ball Z: Extreme Butōden (3DS) by Arc System Works

Sigmanatos

Source: Thanatos
Eternal Champions: Challenge from the Dark Side (Sega CD) by Sega

Sigmeff

Source: Neff
Altered Beast (Arcade) by Sega

Dizzigma, Undigma and Necrigma

Source: Dizzy, Undine and Necro
Guilty Gear XX (PS2) by Arc System Works