Check out these different games.
This set is like a mysterious "alternate set" to the USA LCDs, seen here. It's missing Billy Hatcher and Big the Cat, and everyone is playing a different sport than on the other set. Knuckles' game is about baseball, Tails' game is about football, Amy & Rouge game is about tennis and Shadow's game is about basketball.

Even the games shapes' are different, but they feature the same characters. Cream is still catching flowers, but her game is now a Tulip shape rather than a Daisy. These are thought to be Europe only. Info credit to Risutaru-Chan. Be sure to see the USA set, too!
Additional Info:
"The Tails one is exactly the same as the Knuckles one, except instead of Knux its Tails who is blocking the goal and instead of Eggman at the top of the screen, it is a Neutral Chao.
The Sonic one is probably the best - it's the Sonic 2 special stage. Use the buttons to navigate the halfpipe, dodging bombs and colecting rings. And for some reason, Sonic's on a snowboard of some kind to navigate it.
All of the games are not high-score based. There are three rounds in all of the games which you must clear, and every time a round is cleared the game gets faster. If you fail three times, you lose and must start over - all of the obstacles are randomly generated with each play, adding a small amount of variety. After all three rounds are cleared, you beat the game, and all of the LCD sprites flash at the same time with a victory chime (except for Sonic's one where he blasts, or flashes very quickly, into a giant ring with a victory sound). All of the games use exactly the same sound effects."
Info by MetalMandible