Explore the massive Big City and transform into an enormous twin boss.

This playful character will grow to an immense weight, becoming a colossal figure in the yellow sibling jumper game. It can destroy the earth and become the largest being in the universe in the surprising Rainbow Friends games, creating illusions to control the situation. Delicious fast-food items like burgers, chicken sandwiches, and treats are found throughout the Ragdoll town's mischievous Rainbow Friends big sibling world. Mama looks after the baby in nurturing games, but the hungry giant is clever in this smart legend food game. Navigate through a destructible environment while avoiding dangers.

Use your coins to purchase upgrades and unleash your powers to cause chaos on everything in your path!

The bigger you grow. Consume burgers, doughnuts, and even people! This is Fat Twin Sibling!

Fat siblings compete to become as massive as possible.

Devour everything in sight and become the heaviest 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!