I'm finally getting caught up on my GameCube backlog. I bought this game two weeks ago, and I just started it on Thursday. It's pretty fun, considering that it's a Sonic Team platformer that isn't really Sonic-related. I remembered that GMR rated it on its must-have list for the 2004 Holiday Season, so I decided to get it since it was only $10 used.
The graphics on this game are amazing, and even the darker parts of it are bright enough. I've only gotten through the boss battle against the gecko, and it wasn't tedious. At the very least, it includes the least annoying sound effects and music I've heard in a Sonic Team game lately. (Puyo Pop Fever GC's voices were horrendous, so I only play it with the sound low.)
Also, does anybody know what GBA connectivity features this game has?