Paper Mario (series)

The Paper Mario series is a series of Mario games published by Nintendo and developed by Intelligent Systems. They are 3D games, but the characters are drawn in 2D. They are based around platforming and RPG.

About the series
The Paper Mario series can vary from a platformer, to a RPG. It involves the player going through a game where everything has a "paper" sprite. There are currently three games in the series, with a fourth game that is in development.