dunno. I probably spent 15-20 hours on HMH PSP. it's got multiple difficulties and is a time attack kind of game so there's a lot of replay value there. you could probably walk through the main quest in 10 hours but there's a lot more if you want it.
it depends on what they've done with the alternate modes and how much content is there. I'm going to assume there's less because they probably didn't make 90 RPG quests for that mode. I kind of figure it's one big quest for each mode. that'd be cool.
there's an overarching narrative to HMH that's actually got a huge payoff in the end. the final quests of HMH are really great.
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zizzy
DR. FOOTBALL FACTOR AUGH