James Lambert is currently working on an Nintendo 64 version of Valve’s classic game Portal. You can see how he is getting on as he regularly updates his Youtube channel with the latest updates.
You can also download the latest build to test here.
Portal is a first-person puzzle game, released by Valve in 2007, that quickly became a cult classic due to its clever gameplay and dark humor. The player takes on the role of Chell, a test subject at Aperture Laboratories, and must use portals to navigate through the complex testing environment.