The character of Norimaro, based on Japanese comedian Noritake Kinashi, was cut from the international releases of the game due to Marvel's objections over the character, as they didn't want some random underpowered gag character going against their heroes. Capcom managed to convince Marvel to keep him on the condition he only appears within the Japanese release of the game.
This is the first game in Capcom crossover series with Marvel to have Akuma (Gouki in Japan, Asia, South America and Australia) as a selectable character.
This is the 25th game to be released for the Capcom Play System-II.
Sprites of Dhalsim's wife Sari from Street Fighter Zero 2 (1996) can be found within the game's data. She was going to be seen in the background whenever Dhalsim was in battle but was removed before the game was released.
Karin, a character that wouldn't debut until Street Fighter Zero 3 (1998) (a year after the release of this title), has some prototype sprites left in the game's data. Her appearance differs greatly from her final design, being little more than a spriteswap of Sakura with combat boots and a different head.