Pet bonuses

Big size

Big is a pet size tier listed at +50%.

Big size in Arm Wrestle Simulator

Big size: Big is a pet size tier listed at +50%. Get it by Combine three of the same pet at the current size until Huge. Goliath uses the Goliath Machine. Use it to Finish size upgrades on the pet you are actually equipping. Three weak copies still make a weak Big pet.

What is Big size?

Crafted from 3 Baby copies of the same pet.

Published facts

Big size facts
FactValue
Bonus+50%
GroupSize

How do you get Big size?

Combine three of the same pet at the current size until Huge. Goliath uses the Goliath Machine.

How do you use Big size?

Finish size upgrades on the pet you are actually equipping. Three weak copies still make a weak Big pet.

FAQ

Big size questions

How do I leave the School?

Defeat Champion and hold 15,000 Wins. The Escape School door next to the bosses is the published exit into the Gym.

What does Rebirth reset?

The August 17, 2026 guide says a normal Rebirth spends Wins, sets Bicep, Hand, and Knuckle strength to 0, and keeps Trails plus your remaining Wins. Super Rebirth also resets Trails, Wins, and worlds, keeps Arms, and gives tokens worth +100% Total Strength each while you hold them. Another rebirth listing describes a flat +15% per rebirth and a different keep list, so confirm the button text.

Where do I enter a code?

Look for a Codes button on the side of the screen, or open Store and use the Codes control, then press Verify. Each code is once per account. Lists published October 1 and October 2, 2026 disagree about harborking, so that string is not marked active or expired here.

How many worlds are there?

The official experience listing says 28 worlds. A published world index names 19 normal worlds, and only School through Space Center have exit numbers here. The official listing says 28 worlds, so later names are missing.