Blast the Rock! (大岩をぶっ飛ばせ！, Ooiwa o Buttobase!, lit. Get Rid of the Big Rock!) is an event in Tomba! 2: The Evil Swine Return.
Blow the rock away that is trapping Gran in Pipe Area.
This event is activated direct after the previous event has been cleared. Mole will run into the Trolley Stop and tell Tomba that Gran has been trapped behind a huge rock in Pipe Area.
Head outside and go and talk to Gran who is found behind the rock at the end of the drawbridge in Pipe Area. This will activate the Get Bombs! event, where Gran will tell Tomba to get some bombs to blow up the rock before it destroys the platform he is standing on.
After Tomba has obtained the bombs, head back to the rock and use the Hammer to activate the detonator to blow up the rock and save Gran. The event is cleared.