Cartoon Network Racing. Clearly mostly made to make money off yoing kids who like the CN shows they had included in the game. I'm talking about the PS2 version since I have zero experience with the DS version. Fun in its own way.
Similar things apply to the Ed Edd 'N Eddy Mis-Ed-Ventures gamecube port and PS2 port of Codename Kids Next Door Operation V.I.D.E.O.G.A.M.E. as well.
None of these games are more than tie in games with enough content to make the kids buying them not get bored quickly, but yeah, they're all fun in their own rights when doing a blind playthrough... something I wish I could do for these games again.