Super Mario in Unknown Worlds is a fun platform game based on that famous plumber
An easier, more linear interpretation of the I Wanna Be The Guy difficulty scheme.
Its not a classic, but it will provide you with entertainment for a few hours.
Yup another one of those great games that becomes freeware
A great Super Mario clone
This version of Mario is very similar to the original Nintendo version of Mario Bro's 3.
It is by far the worst game ever made in under an hour.
Play South Park's Cartman in this sidescrolling platformer
A truly amazing side scrolling platform adventure game for both young and old. A must download.
A remake of the old classic except with South Park Characters