Oh No The Ruins Below is a free arcade game developed by Nelvana Digital Inc. for Android devices. In this game, you play as Nate, Lily, or Jumbo Ninja, who must go to the Ruins Below to defeat the Brainlings who have attacked Swell-Mart and take back your hideout.

The game is a dungeon crawler that provides a frantic action-packed experience. You must defeat all the Brainlings in each room using powerful weapons like the Water Blaster, Meatball Gun, and Megazooka. The game also offers useful items like weapon upgrades, bombs, and power-ups along the way to help you in your mission. But beware of enemy traps, cheese monsters, and bombs!

The game features challenging bosses like Megaling, Brainling Ball, and Briiian at the end of each level. So, be prepared for the final boss battle. Overall, Oh No The Ruins Below is an exciting game that offers hours of entertainment for arcade game lovers.