While Pink Death was great when you had possession of the custom pick-up, it grew rapidly tiresome for the poor saps that didn't grab it. However, The Forge had even more to offer. While attempting to jump a Mongoose off of one of the Valhalla multiplayer map's man-cannons, we discovered that you could slam the vehicle (and flailing driver) into the stratosphere by smacking it with a well-timed blow of the Gravity Hammer (a new weapon favored by the massive Covenant Brutes in the single-player campaign). To our surprise, this behavior extended to everything hit with the Gravity Hammer, including rockets fired from the rocket launcher.
In no time, we had set up a make-shift baseball diamond on one side of Valhalla with a batter using a Gravity Hammer swatting at "pitches" thrown by Will and his rocket launcher. If you missed a pitch, there were no strike-outs, only charred Spartan remains and chunks of singed Mjolnir armor. We had turned Halo 3 into an incredibly entertaining baseball game thanks to The Forge.
Suffice it to say that The Forge provides nearly unlimited customizability and affords infinite replayability to a game with an already dauntingly addictive multiplayer experience.

Halo Evolved
While an argument could be made that the single-player campaign alone wouldn't quite be enough to garner a 5/5 score for Halo 3, the entire package is more than satisfying enough to warrant it. The Forge is a gargantuan achievement that puts game design in the hands of players, daring you to be creative and invent a Halo 3 multiplayer experience all your own. Of course, the multiplayer is every bit as astonishing as it has been in past iterations and even eclipses its predecessors in many respects.
In a lot of ways, this review is merely a formality, because there's no doubt in our minds that everyone with a 360 and a hunger for viscious multiplayer should own Halo 3 immediately. In fact, there are probably millions of people who do not yet own 360s that should go out and buy them just so they can witness the majesty that is a furious Halo 3 multiplayer match (provided they enjoy serious competition).
Quite simply, Halo 3 is the reason the Xbox 360 exists.