Mario comes to the PC, in the form of a typing tutor.
In this product you get to play one of four games, of progressing difficulty (as either Mario, Luigi or the Princess):
Mario's Smash & Dash: Assist your character run past a series of boxes and turtles, each labelled with a letter that must be typed to avoid the obstacle.
Mario's Wet World Challenge: Help your characters swim across the screen whilst being chased by hungry sea creatures - only typing the words that scroll across the bottom of the screen will let you escape.
Mario's Tunnel Of Doom: Help your character run through a tunnel filled with traps, avoiding falling blocks and the like, by correctly typing the sentences which scroll across the top of the screen.
Mario's Expert Express: Essentially a practice typing lesson where you copy and type pre-defined paragraphs with the assistance of Mario's supervision.
Mario is voiced in both the disk version and the CD-ROM version. The disk version is apparently the first time that Mario speaks. For the CD-ROM version, they replaced the original voice actor with Charles Martinet, who remains the official voice of Mario to this day (as of 2019).