In my opinion it is Transformers (released by Takara on in Japan) for PS2 in 2003. A lot of people rip the game-play, but I think its great. It has quality voice acting, good graphics for PS2, and an amazing story. Its a must have for any G1 Fan! I modded my American PS2 specifically so I could play that game. It was well worth it. I still pop it in and play it every once in a while!