An iOS version of Rayman 2 was once available on the app store, published by Gameloft, and developed by Ubisoft, it was directly based on the Dreamcast version of the game and included all of the changes made to that version. However, all minigames and bonus games were removed, most likely due to file size restrictions. It was later removed from the App Store 3 years after it's release for unknown reasons.
In early copies of the PC version, the game would sometimes mistakenly display the "CD missing!" message. The game is still fully playable, however, with the drawback of the error message obstructing most of the screen.
In the Sega Dreamcast and the Nintendo 3DS versions of the game, a secret area can be found before the Technical Check-up of the Tomb of the Ancients. By pressing A, B, X, Y, X, Y while Rayman is in front of the Technical Check-Up door, a wooden crate will appear allowing access. Inside are three signs, each containing a different message.
"The Crow's Nest" features a hidden collectable which gives Rayman unlimited ammunition. After gaining the ability to fire, flying to the highest part in the middle of the chamber while holding the jump and shoot buttons will result in Rayman passing through it and entering a secret tunnel. At end of the tunnel, a glowing blue ball can be collected which will give the player an unlimited number of shots.
In an early teaser trailer for the game, Rayman can be seeing using his fists as his attack, similar to the first Rayman game; rather than shooting energy spheres as in the final product.
One of the official artworks for the game is based on the French painting "Le Radeau de la MÃ©duse'" or "The Raft of the Medusa" by ThÃ©odore GÃ©ricault. In it, Rayman and his friends are on a raft in similar poses to those of the people in GÃ©ricault's painting.
In the PlayStation version of the game, collecting at least 720 Lum will unlock a secret 2D level. It is believed that this is a remaining level from the cancelled 2D sequel planned for the original Rayman.
It's possible to get a bad ending in the cave of bad dreams. After the race with Jano, select the option for riches and wealth and you will be rewarded with a cutscene of a fat Rayman siting on an island with a pile of gold next to him, with the words "The End" on the screen.
Rayman 2 originally started out as a 2D platformer akin to the original Rayman. It was to feature the robotic pirates concept that made it into the final game, Betilla the fairy was planned to be in the game, but Ly was nowhere to be found. Many robot concepts were cut, including a robotic dinosaur.
Although Razorbeard eats one of the 1,000 yellow Lums (which lowers the counter to 999), you can still find a 1,000th Lum. It can be found in the Tomb of The Ancients but it does not add to the counter - it only refills your life.
Rayman wasn't the only one whose color was changed to the Japanese version of the game. Sssssam the watersnake went from purple to green, Jano's hat became red, and Ly the fairy's design changed completely: her eyes were rounder, her pupils were bigger and a lighter shade of green in color, she was given thin eyebrows the same color as her hair, instead of green lips, they were now pink, and her clothes also became purple and white.
In the Japanese release, Rayman was recolored from purple to blue. This is because in Japan, purple is commonly used on villains. It is likely the change was to assert Rayman as the game's hero.