Amnesia

Wildcops. Wild Guardy is your close friend from the time of the planet Machine, who tried very hard to get into the caste of star guards, but... After the planet exploded, we didn't know whether your friend was alive or not. But luckily, it seems you saw him again, in the battle with Heavy Iron, but something is wrong... Wild Guardy doesn't remember you. He remembers the star guard from the stage, but not his friend.