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

Hippogrigma

Source: Hippogriff
Demon's Crest (SNES) by Capcom

Sigmazabi and Shar Aznabligma

Source: Sazabi and Char Aznable
Super Robot Wars D (GBA) by AI

Sigmova

Source: Nova
Shin Megami Tensei If... (SFC) by Atlus

Sigmina

Source: Mina
Iconoclasts (Various platforms) by Konjak

Robigma

Source: Robin
Iconoclasts (Various platforms) by Konjak

Sigmasura

Source: Asura
Shin Megami Tensei: Strange Journey (DS) by Atlus and Lancarse

Sigmado / Sigmadeleine

Source: Ado / Adeleine
Kirby's Dream Land 3 (SFC) by HAL Laboratory

Eligma

Source: Elena
DoReMi Fantasy: Milon no Dokidoki Daibouken (SFC) by Hudson Soft

Burst Sigman

Source: Burst Man
Mega Man 7 (SNES) by Capcom

Atrocious Maverick Ship "Sigourma"

Source: Atrocious Treasure Ship "Gourem"
Ganbare Goemon 3: Shishijyuurokubei no Karakuri Manji Katame (SFC) by Konami