You gotta feel the beat, man, gotta feel the beat. Messing up one note and you will lose combo, fever and everything...
Just finished the first 2 stages of Patapon 2...it's the first stage so I am not able to say much, but you can reach fever with just 3 combo. That's a relief compare to Patapon 1's Fever.
Edit: Just rescued my first Heropon, and he throws a fricking rock at the Dodonga, badass!