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

S.I.G.M.A.

Source: B.O.B.
B.O.B. (SNES) by Gray Matter Inc.

Camilligma

Source: Camilla
Castlevania: Circle of the Moon (GBA) by Konami

Cyclopsigma

Source: Cyclopsis
Mighty Morphin' Power Rangers (Genesis) by Banpresto and Nova

Sigmayer

Source: Bayer
Majyūō (SFC) by Nihon Soft System

Professor Σ

Source: Professor X
X-men: Mutant Apocalypse (SNES) by Capcom

Sigma Capsule

Source: Wily Capsule
Mega Man 7 (SNES) by Capcom

Goldsigman

Source: Goldman
Dragon Quest 1 & 2 (SFC) by ChunSoft

Dr. Sigmachino

Source: Dr. Machino
Awesome Possum... Kicks Dr. Machino's Butt (Genesis) by Tengen

Queen Beryligma

Source: Queen Beryl
Bishōjo Senshi Sailor Moon: Another Story (SFC) by Angel

The Starsigmas

Source: Starman, Starman Super, Ghost of Starman, Starman Deluxe, Final Starman

Earthbound (SNES) by Ape and HAL Laboratory