EA’s Gamecube version of Harry Potter Quidditch World Cup can be linked with the Gameboy Advance version in two ways.
First, unlocked cards can be swapped between both versions.
Second, when playing an exhibition match, the linked GBA player can compete against AI in a game of Pong (restricted to vertical movement only). If the GBA player managed to knock back enough shots to make the meter at the bottom grow, the GC player is rewarded with a Bludger ability… which doesn’t really do anything.
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