Instructions
Enter the Elite Penguin Force Headquarters and equip the White Knight's Shield. You obtain this item by completing the third installment of the Knight's Quest.
Go through the hole in the wall of the room. You will receive some dialogue from a character named Herbert Bear. When it is over, he will call down a three-headed monster called the Hydrabot. You need to defeat the monster to get the EPF badge.
Throw snowballs at the red Hydra head when it opens its mouth. Continue throwing them until you defeat the head, and then focus your attention on the next head.
Move to the platforms that the yellow Hydra head lights up. When it fires its laser, the shield will reflect the beam back at the head. Continue this tactic until you defeat the head.
Throw snowballs at the Cauldron 3000 when it moves over the blue Hydra's head. This will dump lava onto it when you hit the target on the Cauldron. Continue throwing snowballs until you defeat it.
Pick up the EPF badge and the three medals that you receive as a reward.