Another World (or, Out of This World) is a wonderful game developed by Eric Chahi and released in 1991.
I have some kind of obsession with this game. During the years, I ported various versions of the game (3DO, PC, hires) to a handful of platforms: PSP, PS2, GBA and PC. Here is my new pure Javascript implementation. No plugins, no ActiveX, no Flash. Just need a modern browser (Chrome, Safari, Firefox, Opera) and you’re good to go.