An electric guitar was added to the intro stage theme in the US and EU releases.
Like Serges in Mega Man X2, there is a theory that Isoc is Dr. Wily. A quote from Haruki Suetsugu in the Mega Man X complete works suggests their similarities go deeper, stating, "I was thinking about a certain scientist while designing this character..."
Metal Shark Player's Japanese name is actually Metal Shark Prayer. His English name is the result of a mistranslation of R and L being identical in Japanese. The reason he is called Prayer is because he resurrects other Mavericks (these being Sting Chameleon, Magna Centipede, and Blast Hornet), thus he "prays". It is also worth mentioning that when he resurrects the Mavericks, he shouts their Japanese names.
Contributed by GorgonBull35
The Wolfoid Reploids that can be saved are all named after characters from other Capcom franchises.
• Maringa - Morrigan, Darkstalkers
• Ryu - Street Fighter
• Ken - Street Fighter
• Chun - Chun-Li, Street Fighter
• Guy - Final Fight
• Nina - Breath of Fire
• Batsu - Rival Schools
• Data - Mega Man Legends
• Regina - Dino Crisis
• Leon - Resident Evil
• Sam - Samanosuke, Onimusha
• Naruho - Naruhodou (Known as Phoenix Wright in English), Ace Attorney
• Dante - Devil May Cry
• Gomez - El Dorado Gate
• Arthur - Ghosts 'n Goblins
Contributed by GorgonBull35