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The Panel de Pon series has to have one of the most confusing and convoluted histories of any Nintendo IP when it comes to its localisation.
Nintendo and Intelligent Systems' popular puzzle series originally debuted on the Super Famicom in Japan back in 1995, with the release of Panel de Pon. However, Nintendo chose not to release it under the same name in the West, instead localising it as Tetris Attack and famously swapping out the fairy-like aesthetic for characters and locations from Super Mario World 2: Yoshi's Island.
As Ricky Berg covered in our history of the series from 2023, a bunch of games for the Japan-exclusive Nintendo Satellaview followed thereafter, including Yoshi’s Panel de Pon, a version that brought the Yoshi rebrand back to Japan, and another set of games in the year 2000 — the most important of which (for this article at least) is the sequel for Nintendo 64, co-developed by Intelligent Systems and the North American-based Nintendo Software Technology. Initially referred to as Panel de Pon 64 in a small number of magazines in 1999, this game later underwent its own rebranding during its development.
But rather than Yoshi's face adorning the new title, in another unexpected move, Nintendo instead decided to rebrand it as Pokémon Puzzle League, taking advantage of the explosive popularity of Pokémon.
Ken Christiansen, whose name you may recognise from a recent series of articles on Disney Interactive, was an employee at Nintendo Software Technology during this time. While not directly involved with Panel de Pon 64, he later got roped into contributing art to the reskinned version of the game and remembers some of the difficulties the original team in the US had with the project:
"That was one of the projects brought to the States by those at Digipen, in Vancouver," says Christiansen. "They were working with a Japanese developer, but I remember it was just taking forever. I wasn't on the project, but I could always hear them in the hallways: 'Oh, I've got to redo this fluttering leaf again.'
"Anyway, if I'm remembering correctly, the producer on that was like, 'You know, we already have the engine working; we're just fighting to get all these art elements in there and get them approved. Why don't we just redress this as Pokemon and get this game shipped? And they went for it. So we had like this little interlude at NST of doing Pokemon Puzzle League. Adi [Granov], who went on to become a huge Marvel star and designed the Iron Man suit for the films, and I split the character profiles because it was just like a character image of them in action or whatever. Then we did the icons for all the little blocks and stuff.
"We did sketches for the poses that we wanted, and then we shipped those off to Pocket Monsters, and they had their own staff artists return the final art, because they weren't going to let anyone else do their characters (Ours weren't necessarily on model). The turnaround on that was so fast; I want to say six months, but it could have been a little bit longer than that. The game was already there, though, so after we got the final art back, it could just be dropped right in the engine."
As mentioned, Pokémon Puzzle League was released in North America in 2000 (and later Europe in 2001), but it was never released in Japan — either under its original name or under the Pokémon name. The Panel de Pon version of the game did later get published as part of the Japan-exclusive Nintendo Puzzle Collection in 2003 for the Nintendo GameCube, however.
Additionally, a YouTuber called GamersManual discovered an early N64 prototype of the game from when it was still branded as Panel de Pon six years ago. This still seems to be undumped, as of 2026, though.
For a more complete history of the Panel de Pon/Puzzle League series, we recommend checking out Berg's article.