The game features playable mechs from the following series:
Aura Battler Dunbine Blue Comet SPT Layzner Brain Powered Heavy Metal L-Gaim Martian Successor Nadesico Martian Successor Nadesico: The Prince of Darkness Metal Armor Dragonar Mobile Fighter G Gundam Mobile Suit Gundam 0083: Stardust Memory Mobile Suit Gundam: Char's Counterattack Mobile Suit Gundam Wing: Endless Waltz Superdimensional Fortress Macross Superdimensional Fortress Macross: Do You Remember Love Wings of Rean
Aura Battler Dunbine Blue Comet SPT Layzner Brain Powered Heavy Metal L-Gaim Martian Successor Nadesico Martian Successor Nadesico: The Prince of Darkness Metal Armor Dragonar Mobile Fighter G Gundam Mobile Suit Gundam 0083: Stardust Memory Mobile Suit Gundam: Char's Counterattack Mobile Suit Gundam Wing: Endless Waltz Superdimensional Fortress Macross Superdimensional Fortress Macross: Do You Remember Love Wings of Rean
A second version of A.C.E. 2, dubbed the Special Vocal Version was released shortly after A.C.E. 3. This version adds the the vocal theme songs for each series as optional background music, but is otherwise identical.