Explore Giant Big City and evolve into a massive twin boss.

This fun character will grow to immense size, becoming a giant in the yellow sibling jumper game. They can devastate the world, claim the title of the universe's fattest in surprising rainbow friend games, and manipulate events with clever illusions. Delicious fast food like burgers, chicken sandwiches, and sweets are scattered throughout Ragdoll Town's mischievous rainbow friends area. A mother cares for the baby in nurturing games, but the hungry giant is cunning in this food-based legend game. Navigate through a destructible environment while avoiding dangers.

Use your coins to unlock upgrades and wield your powers to wreak havoc on everything in your path!

The bigger you become, the more you can devour. Eat burgers, donuts, and even people! This is Fat Twin Sibling!

Fat siblings compete to see who can grow the largest.

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!