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

Titanic Sigmant

Source: Titanic Ant
Earthbound (SNES) by Ape and HAL Laboratory

Sigmothra

Source: Mothra
Godzilla: Monster of Monsters! (NES) by Compile

Dualhead Sigmydra

Source: Dualhead Hydra
Final Fantasy Mystic Quest (SNES) by Square

Ice Sigolema

Source: Ice Golem
Final Fantasy Mystic Quest (SNES) by Square

Sigmerus Rex

Source: Flamerus Rex
Final Fantasy Mystic Quest (SNES) by Square

Sigmice King

Source: Ice King
Castle Crashers (Xbox 360) by The Behemoth

Sig(ma)

Source: Sig
Puyo Puyo!! 20th Anniversary (DS) by Sonic Team

Goligma

Source: Golem
Breath of Fire 2 (SNES) by Capcom

Siggy Eye Σ

Source: Evil Eye Σ
Touhou Fuumaroku ~ the Story of Eastern Wonderland (NEC PC-9801) by ZUN

Sigmerizer

Source: Gamerizer
Mega Man 7 (SNES) by Capcom