Agent X19
Agent X
Alf Bandstand
The Alpha Device
Alf Garment
Amber
Amy Rose
Android R-G 1: Splitzoid
Angel Island Zone
The Anti-Life Device
The Anti-Knuckles
The Anti-Life Virus
Apertix Herd
Aquatic Ruin Zone
Aquis Badnik
Arach-Bot
Armpit
Arnem Abacus
Arthur
Astratraz
The Arena Of Judgement
Robotnik's Artificial Bubble Trap
Robotnik's Automatic Assimilation Machine