...not that this has anything to do with Raz's qualms against buying Colosseum, I just thought it'd be a catchy title for my critique of it.
Genius Sonority sucks [male-specific body parts]. Big, hairy ones. Even its name sucks. "Genius Sonority" sounds like one of those Japanese companies who tried to translate their name into a cool-sounding English name but ended up calling it something like "Flying Beaver Screw". For those who don't feel like looking it up on dictionary.com, "sonority" refers to sound, so "genius sonority" roughly means "smart sound".
"Smart sound" does not describe Pokémon Colosseum.
For one thing, all the sound effects of the moves I've seen seem to be on the high-pitched end of the spectrum. A lot of the sound effects I liked back in the N64 Stadiums have been replaced by this dumb tinkling sound. I listen to Earthquake, and it sounds like breaking glass. Isn't it supposed to have that rumbling roar that it had in the N64 Stadiums and the GB games? Shadow Ball had a cool "hum" and subsequent "WHAM!" back in Stadium 2 that I liked, and now all I hear is tinkletinkletinkletinkletinklewhop. Even electric moves no longer seem, well, electric. Their sound has been toned down so much since Stadium 2 that they pretty much resemble just every other move that has sparks and tinkle.
Speaking of sparks, a lot of the animations are flashy when they really don't need the flash. The animation for Shadow Ball is a dark, shapeless blob (as opposed to the sharply-defined sphere in Stadium 2). With sparks. Sparks and tinkling seem to be a recurring theme in Genius Sonority's interpretation of Pokémon moves. Don't get me wrong - Genius Sonority does a good job with the CGI. But they see fit to give everything similar special effects and expect that it's a good interpretation. In fact, why don’t they take a few hints from HAL? They copied the 3D Pokémon models from them, so why not take a few attack animations?
And then we have the characters that are amusingly insecure with themselves after you beat them - not that this is necessarily Genius Sonority's fault; these guys have existed since the days of RBY. However, the Orre region seems to be filled with people like this who seem to have insecurity encoded in their DNA. Every time I see one of those characters with hunched over with their face buried in their hands after a battle, I imagine a scene like this:
Father: You came second in the Pokémon tournament?! You should be first! I am disappointed. You bring shame and dishonor to this family.
Son: I understand, father. I will go stab myself now.
These guys need a major dose of testosterone to boost their competitiveness level (except for Cipher Admin Dakim, who has obviously injected himself with too much testosterone already).
I've got more thoughts, but I'll add them later.