A side scrolling platform game would kind of be like Donkey Kong Country 2 or something of that nature. But thats an old game I can't think of any right now just off the top of my head that are new, partly because side scrolling is getting washed out by 'open ended sandbox worlds'
p.s.-I guess most of these kind of games appear on the GameBoy Advance, like the Incredibles, Tak, Lizzy Miguire. Castlevania on the DS is another example of it too.
hey im not sure if u played tom clancy rainbow six vegas for psp but do u no how to talk to ur teamates on online play du u need a mic or sumthing ps plzzz tell me plzzzzzz