Asspotted by Kotaku,Halo 2is celebrating its 20th anniversary in the best way possible: by finally releasing the most spectacular gameplay demo that we never got to play.

In the grand scheme of things, few gameplay previews created the same hype levels asHalo 2’sgameplay reveal at the ’03 E3.Halo: Combat Evolvedlooked fantastic when it came out, butHalo 2looked almost next-gen in comparison.

Halo 2’s cover image

Sadly, though it was indeed a gameplay presentation — not the usual CGI cutscene most studios nowadays use for game reveals — the release version featured only a severely toned down version of the original Mombasa mission. Thedevs explainthe mission was only created for the presentation and wasn’t originally intended to be part of the game. The mission ended up going nowhere as its source code was in poor shape, due to it having been hastily put together just to show something cool at E3. That’s all understandable, but you can’t make the coolest gameplay demo of all time and expect people to be ok withnevergetting to actually experience it.

Take a look below, and you might get what I and the fans have been wanting for so long:

Marvel Rivals season 0 battle pass art with Doctor Strange, Mantis, and The Punisher

I know it probably doesn’t look all that extraordinary nowadays, but that’s totally due to the low image resolution — probably. Jokes aside, sure, shooters have grown way more impressive than that during all the time Microsoft wasted in not making the demo playable, but there’s still a lot to love here. The entire thing is a living and breathing set piece, from the moment Master Chief lands to see the barracks, passing by the city’s bombing by an enemy of a never-before-seen size, to the highway chase. This was blockbuster FPS action like we’d never seen before.

Once again, though Microsoft is cool for allowing it to happen, the key players here were fan modders. They were the ones who picked up the code to work it into a playable state, and it must have been rough. Of the ordeal,Kenneth Peters had to say, “In many ways this is harder than Alphamoon to work on, as it was never made to be played “off script.” Oh, and the scripts. Well over 3400 lines of barely documented haloscript originally written under an insane time crunch almost two decades ago, which itself was made to work around various bugs of the engine at that time. Not a joy to decipher and translate into the modern engine, to say the least.” and,“We have seen things… things a programmer wouldn’t believe…“

paper mario 64 key art

But, it seems like the work is now finished. The New Mombasa level is apparently as playable as it deserves to be, and finally ready to be enjoyed by everyone.

The legendary level will finally become playable as a Steam Workshop mod on theMaster Chief Collectionon November 9th.

Far Cry’s art

Battlefield 6 aiming RPG at a helicopter

Milla Jovovich portraying Alice in Resident Evil 2002, wearing a red dress and holding a gun in her hand.

Characters combatting strange creatures in Light of Motiram.

A battle scene in Battlefield 6 Open Beta

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CoD BO7 The Guild robot