Gaming Guide

+1 Lift Rock For Treasure: Every Arm and Its Power Boost

The full lineup of Arms, their rarity, cash or Robux cost, and the exact Power each one adds.

The full lineup of Arms, their rarity, cash or Robux cost, and the exact Power each one adds.

Arms are the core strength upgrade in +1 Lift Rock For Treasure, the Roblox incremental simulator by ErEr Games. Each Arm you equip raises how much Power you gain while training on the lift pad, which in turn lets you break rocks faster and reach deeper treasure zones. You buy them from the shop at the center of the map, paying either in-game cash or Robux.

Quick answer: There are 15 Arms total. Disco gives the biggest Power boost at 50K, while Dirt is the cheapest starter at $100. Two Arms (Glass and Glitch) are Robux-only Exclusives.

Image credit: Roblox via YouTube/@Superlex Plays

Every Arm in +1 Lift Rock For Treasure

The table lists each Arm in order of Power boost, from the entry-level Dirt up to the Celestial-tier Disco. Cash prices use the in-game dollar currency; the two Exclusive Arms are bought with Robux instead.

ArmRarityCostPower boost
DirtCommon$1002
WoodUncommon$1K5
CobblestoneUncommon$25K10
BrickRare$100K20
GoldRare$300K50
GlowstoneEpic$1M100
ObsidianEpic$5M200
GlassExclusive59 Robux350
DiamondLegendary$100M500
LavaLegendary$500M1K
EmeraldMythic$6.5B2.5K
GlitchExclusive399 Robux3.75K
BedrockSecret$200B5K
NuclearSecret$1.5T10K
DiscoCelestial$20T50K

Glass and Glitch sit outside the cash progression entirely. You cannot unlock them by grinding currency, only by spending Robux, so plan your cash upgrades around the Arms you can actually earn.

Image credit: Roblox via YouTube/@Superlex Plays

How to buy and equip Arms

Head to the shop stall at the center of the map and open the Arms menu. Every Arm appears here with its price, rarity, and Power boost shown next to it.
Earn cash by lifting rocks, picking up the treasures that spawn underneath, and selling them at the green Sell stall. Each sale adds to the total you need for the next Arm.
Select the Arm you can afford and confirm the purchase. For Glass or Glitch, the purchase is processed through Robux instead of in-game cash.
Equip the Arm from the same menu. You know it worked when the new Power boost applies to your training, with the strength floats on the lift pad rising to match the equipped Arm.
Image credit: Roblox via YouTube/@Superlex Plays

Why Power boost matters

The Power boost on each Arm sets how fast your Strength and Level climb while you stand on the lift pad or a gym power platform. A higher boost means rocks break sooner, which opens the path into better luck zones where rarer treasure spawns. Since treasure sells for more at higher rarities, upgrading your Arm feeds directly back into the cash you need for the next one.

The jumps between tiers grow steeply. Obsidian doubles Glowstone at 200 Power, Diamond leaps to 500, and the Secret and Celestial Arms scale into the thousands. Disco tops the list at 50K Power, far ahead of every other option, making it the long-term goal for players grinding toward the deepest zones.