A burrow leading to Dam Flea in Viggo's Revenge.

Digging is Roofus' special ability.

In order to use his ability, Roofus will need to locate a Mound (sometimes known as a Burrow). When encountered, Roofus can stand on top of these holes and press the jump button to dig. He will then end up in another hole elsewhere in the level. Some holes are one-way only (these are usually at the end of a 'chain'), though the majority lead back to each other.

Like with Cat Scratches, these are often a way of leading you to a trapped baby.

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