Ominous Vault

The Ominous Vault is a treasure found in. It is actually a.

Collecting the treasure
To get it, destroy the dirt block and get on top using a jetpack. Kill the Spornet, and climb the vine on the left. Then, jump off of it once on top and grab the second vine while in the air. Do the same for the third. Climb to the top of the third vine and grab the treasure. Finally, get off on the left.