Is an HD remake of Halo 2 headed to Xbox One? Microsoft won't say, but if it does it would have to feature "fantastic" multiplayer, Microsoft Game Studios boss Phil Spencer has teased.

Speaking to IGN about what he believed would be the most important feature of a Halo 2 remake, Spencer said: "In this fictitious world where that game existed, it's an easy answer: it has to be just the multiplayer experience that we all found in that first Halo 2 game.

"If you think about what happened in the franchise and what were the hallmark moments - when did duel wielding come in, when did another playable character that wasn't Master Chief come in?"

"All the things that you and I know about the evolution of the franchise, if you're going to say one thing about Halo 2, you're going to talk about real multiplayer. I think you just have to nail that in just such a fundamentally core way."

Spencer believes that Microsoft would have to do a better job with multiplayer than it did with the Saber Interactive-developed Halo: Combat Evolved Anniversary, too.

"Frankly [we'd have to do it] probably better than we did with Halo 1 Anniversary," he continued. "I thought the multiplayer in Halo 1 Anniversary was good, but Halo 1 never had multiplayer in the truest sense, so it always was going to be something different.

"If there were something called Halo 2 Anniversary, I think the multiplayer would have to be fantastic."

Halo 2: Anniversary is widely believed to be in development for release this November, with Halo 5 rumoured to have been delayed into 2015.

Microsoft has yet to confirm or deny either rumour.