This page contains Hamtaro: Ham-Hams Unite Unlockables for Gameboy Color called "G-Rock song" and has been posted or updated on Sep 11, 2006 by nellie.
- Developer: Pax Softonica
- Publisher: Nintendo
- Genre: Role-Playing Console-style RPG
- Release: Oct 28, 2002
- ESRB: Everyone
Collect all of the rocks in each area and go to the Sky Garden area. Go to the hole and Chuck-Chuck all of the rocks in the box in order to open the rock door. Note: Inside the rock door is the HM Boutique.
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