You can also compete online through Wii's Wi-Fi. MK Wii is the 8th instalment in the spin-off Mario Kart series and features the largest number of playable characters, new circuits and remade ones from the previeous games. In terms of sells It greatly surpases SMB2.
SMB3 is similar to SMB and SMB2 but introduce new abilities for M and Luigi in the form of ''suits'' that, for example, allow M to fly for a short period of time.
NSMB is a DS Mario game that has the feel of a classical 2D platformer but it includes 3D models so it would classify as a ''2.5D'', it also has many new features like power-ups, minigames etc.