Looking for 2D Platform game

As the topic name im looking for a new nice 2D Platformer for my DS.

I got theCastlevaina games and going to buy the new darkvoid for the DS. Thankful for all the help i can get!

New Super Mario Bros is a pretty good platform game.

forgot to sey I got that one. and yes it is good :)

More 2D platforms for DS pls!!!! A new metroid in 2D to DS would be so asum

Some kind of Sonic collection was just released. The first four games on one cartridge. Not sure what it was called though.