$$$ for how much

for how much can I $ sell my son's guitar hero ?

It depends on condition, which game it is, what goes with it...
Don't bring it to gamestop they rip you off.
Look around craigslist as a price guide, and then post it there with a reasonable/ slightly lower price, to sell it faster.

Depends on the condition.
(and which one it is)
If it's world tour, with a guitar, I would say no more than $50 maybe.

Check with any local pawn shop,like Monique said it depends on it's condition and what you sell with it.

well I asked my son and he sais is legens of rock we got it at the store for almost $200 bt he does not use it anymore ad I want to get rid of it its also in good condition.

Maybe about $50-$75, game and guitars.

$80