Dr. Mario Express

Chotto Dr. Mario is an upcoming game to be released on DSiWare for the Nintendo DSi. This game has the same design as Dr. Mario Online Rx (also known as Dr. Mario & Germ Buster). This game won't feature the Virus Buster mode, unlike the Wii version. 3D objects are cell-shaded in this game. The official site notes this game is for one player, but in some screenshot P1 can be seen. This meens there is a multiplayrer option.

Links
Offical Japanese Site