I once had the Japanese version of Digimon world 2 for the PS1 and I remember it having a separate game mode that, by default, would put you in an arena with Metal Greymon vs Were Garurumon. For whatever reason, the fight played fully automatically, no input needed, but if you messed around with buttons, you could sometimes change the attack of M.Greymon to the breast missile. After the fight was over, you’d be thrown back at the main menu.

I’ve never seen anyone comment on it and even searching right now doesn’t show any results. So, does anyone know what it was supposed to be and how to “properly play” it? Cutting room floor only mentions that western releases completely removed all compatibility with the Japanese gadgets and graphics related to that