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

Violigma

Source: Violen
Mega Man X2 (SNES) by Capcom

Squirtigma, Wartigma, and Blastigma

Source: Squirtle, Wartortle, and Blastoise
Pokémon FireRed and LeafGreen (GBA) by Game Freak

Sigmander, Sigmeleon, and Sigmizard

Source: Charmander, Charmeleon, and Charizard
Pokémon FireRed and LeafGreen (GBA) by Game Freak

Bulbasigma, Ivysigma, and Venusigma

Source: Bulbasaur, Ivysaur and Venusaur
Pokémon FireRed and LeafGreen (GBA) by Game Freak

Sieguema

Source: Giegue
Mother (FC) by Ape

Master Siggy

Source: Master Eddy
Mother 3 (GBA) by Brownie Brown and HAL Laboratory

Lashigma

Souce: Lashiec
Phantasy Star IV: The End of the Millennium (Genesis) by Sega

Sigmemon

Source: Demon
Final Fantasy VI by Square
Final Fantasy Record Keeper version (Mobile) by DeNa

Professor Sigmoak

Source: Professor Oak
Pokémon FireRed and LeafGreen (GBA) by Game Freak

Bowsigma

Source: Bowser
Super Mario World (SNES) by Nintendo EAD