#DidYouKnow that Optimus and Megatron fought Bomberman and Simon Belmont? In 2003, Konami held significant shares in Takara and Hudson Soft, so they decided to promote all three’s IPs via a crossover fighting game, DreamMix TV World Fighters. It was quite the smash!

https://tfwiki.net/wiki/DreamMix_TV_World_Fighters