I like Tempo and Kolibri, I think that along with Virtua Fighter, they're the best 32x games. The worst ones are easily Cosmic Carnage (though I enjoy the ultra-Japanese, anime-esque synth tunes) and the shitty Primal Rage port. MKII on the 32x was pretty decent though, but if you owned the Genesis cart, wasn't really worth the improvements.
My 32x(es) are shoddy at best, they only work when they want to. I remember seeing Virtua Hamster on a release list long ago; what the hell was it supposed to be about?