i know for a fact that even in the console versions they’re auto available
however, i believe that in the arcade version, you can unlock their bots (Gaits, Super 8, Hellion, Warlock, and the infamous Goukibot). in the console (Sat + PSX) you can unlock them indefinitely.
enter after you select your VA, and before teh versus screen
Gaits: A1, A2, Boost, Gun, A1, Boost
Super8: U, R, D, L, U, R, A1, U, A, D, R, A2
HELLION: U, U, D, D, L, R, Boost, Gun
Warklock: L, A1, U, A2, R, Boost, D, Weapon
idk gouki’s, but i’m working on it