Well in shooters I tend to wanna play fast anyway, just for the hell of it, so I don't think it would make such a big impact there.In puzzle games there tends to be more thought involved so the effect on the gameplay is much more pronounced. Typically in your run of the mill match 3 games you'd get your combos by chaining more blocks together per match, naturally making you wanna play slower. Here it's the exact opposite

Yeah good points. I'd never really considered how other "match-3" games handled their combos and how that impacted on gammeplay, but you're dead right.
Funnily enough I remember reading an anaylysis someone had written about mono, which made some really interesting comparisons between it and puzzle games. I can't claim a lot of what was said was in my mind when I designed it, but it did make a good argument for why it had proved relatively popular.
I managed a 9xCombo and thought I'd unlocked a zoot - but nay, I got confused with reach level 9 - it was a 20x I needed

I laughed at that because the original Zoot target was in fact a 9x combo, but I asked SiN to increase it to 20x because it was just too easy

I'm up to about 160000 on arcade and about 120000 on classic now - I think I prefer the purity of classic - arcade's a bit randolm for me and by the time I remember what the powerup does it's too late and I've match it anyway (good or bad).
Well I'm just short of 1 million in arcade, but haven't played Classic since playtesting. I know what you mean about the randomness of arcade mode and that's certainly a factor when you first start playing, but when you get really good at exploiting the powerups then the randomness becomes less and less of a factor.