16 Mind-Blowing Facts You Didn't Know About Halo
3. There Was A DS Prototype Built With The GoldenEye Engine
Although it's now been proven as fake, Bungie did confirm once through an interview with IGN that a DS version of Halo was pitched to them multiple times, although they decided that the console itself didn't fit the genre.
The nearest the team got describing how it would work was as a side-scrolling shooter, but ultimately the mods that appeared online back in the early 2000s were all unlicensed, despite some brilliant work from coders using GoldenEye 007 as a framework.