A Very Pyoko Adventure

Explore explore explore. Now that you've got a flashlight, you needn't worry about grues or stationary objects.

As you go deeper into the dungeon, you find what seems to be ruins of an ancient, yet unadvanced, civilization. Boring.

You come upon giant double-doors, 8 meters high, with the chilling inscription carved in stone nearby:

"BEWARE THE BEAST THAT LIES WITHIN"

Unfortunately, you are illiterate. What do you do?