Explore Giant Big City and transform into a colossal twin boss.

This entertaining character grows to a massive size, becoming a goliath in the yellow sibling jumper game. It can obliterate the earth and become the universe's fattest entity in startling rainbow friend games, creating deceptions to control the situation. Amazing fast-food items like burgers, chicken bread, and treats are scattered throughout Ragdoll Town's naughty rainbow friends huge sibling area. Mama looks after the infant in care games, but the fat, hungry giant is cunning in the shrewd legend food game. Navigate a destructible environment while trying to avoid danger.

Use your oil to purchase upgrades and wield your powers to unleash devastation on everything in your path!

The bigger you get, the more you devour. Eat burgers, doughnuts, and people! This is Fat Twin Sibling!

Fat siblings battle to become as enormous as possible.

Consume everything in sight and become the fattest siblings.

What's New in the Latest Version 1.4

Last updated on Sep 1, 2024

Minor bug fixes and improvements. Install or update to the newest version to check it out!