The original freeware version, with 100% original awesome. Cave Story ('The Original', Platform: PC, circa 2004) There have been numerous new versions and unofficial ports of Cave Story since the original was released in 2004, so assuming you don't want to know the specifics of the TI-83 plus calculator port, I'll just mention the differences of the five official versions. There are also a few 'easter eggs' for fans of the older games.
Cave Story 3D (for the 3DS) is a 3D remake of the 2004 original where all the characters and levels are in 3D perspective.
