Not only is Halo 2 brighter, but it's VERY BUGGY.
We play Halo2 system link at my house every wednesday with 8-16 people. Last night, while playing with 2 360's in system link, we had the sound cut out several times, game speed varied wildly, from slowdown to running and jumping WAAAAY too fast, at one point the game simply refused to load capture the flag on coagulation, coming up with a "Failed to Load map" error, but for some reason decided it wanted to load the map 20 minutes later after playing a few different levels, and the for some strange reason when you use the communicator, voices pretty much only comes out of the headset now instead of through your stereo speakers, and is muffled to hell.
The more frustrated we got, the more we realized how stupid MS was for not simply releasing a recompiled version of Halo 2 for the 360. Not only is there no Halo game coming out for the 360 for at least a year, but people who invest thousands of dollars to "upgrade" to a 360 now get the pleasure of having Halo 2 play MUCH, MUCH worse.
Just another reason to hate MS.
Flagg