Super Mario Bros.
Games Series

The groundbreaking Super Mario Bros. spawned two different SMB2s and the wildly popular SMB3.

It should be noted that Super Mario World had a "Super Mario Bros. 4" subtitle on the Japanese packaging.

Super Mario Bros.NES[USA][Japan][Europe]
Super Mario Bros. 2NES[USA][Japan][Europe]
Super Mario Bros. 3NES[USA][Japan][Europe]
Super Mario Bros.: The Lost LevelsNES [Famicom Disk System][Japan]
Super Mario WorldSNES[USA][Japan][Europe]