Snaky Pool Plateau

You see a Purple Multi-Grunt Switch (PMGS) blocked by three rock crystalz .

When a pair of Gauntletz is finally available from the GruntzMachine, take them and break the rock Crystal ... and step back! Then break the remaining Rock Crystal and pick up any goodiez left in the rubble.

What?!? Do you need more instructionz on how to complete this area?