I'm curious if this is intentional, Puzzle Bobble 2 (Arcade) has a separate leader board from Bust-A-Move 2:Arcade Edition even though the wiki states that its the same game, but Puzzle Bobble 2 (Arcade) is the original version.

wiki reference- "Puzzle Bobble 2 is the first sequel to Puzzle Bobble. It was titled in Europe and North America as Bust-A-Move Again on the arcade and Bust-A-Move 2 on the home consoles."

I ask because I want to run this version against the USA versions times and im just unsure why they are listed as 2 separate games.