Lift a Cube: How to Get Mythic Arms (Observed Costs & Routes)

To get Mythic Arms in Lift a Cube, grind in-game currency by lifting cubes until you can buy the arm shop listing observed at 15 million currency — one player reached that price point after grinding to about 15.7 million strength and reported getting the arm ("Finally, guys, I got it"). A reported 300 Robux purchase route also exists, and "Mythic" can additionally appear as a ~1% roll result in the arm roll system. Note that "Mythic Arms" is not one confirmed item with one fixed price — check the current shop listing in-game, because reported values differ.

What Mythic Arms refers to

In one recorded session, a player browsing the arm shop asks "Do they have mythic? Mythic arms" and finds a 15-million listing. The label is used in other ways across community references, so keep these three usages apart:

• One arms list places Mythic Arms as tier 7 of 8 — Paper, Foam, Cotton, Iron, Steel, Crystal, Mythic, Celestial — with "Very High" push-up speed and roughly 4.7x relative speed, described as an "Endgame unlock."
• Another community tier list uses "Mythic Arms" as the name for the paid Robux arm tier, estimating roughly 7x or higher push-up speed, which outscales the best free arm tier.
• In the arm roll system, "Mythic" appears as a random roll rarity with a displayed 1% chance (a "mythic 600x" roll result).

All tier names are community labels; the developer has not published an official tier table, official prices, or official speed values, so these figures may change with patches.

The observed in-game shop route (15 million currency)

In one recorded session, the arm shop displayed Mythic Arms at 15 million in-game currency. The player had only 2.4 million (later 1.7 million) and could not afford it ("Not even close"), so they settled for a cheaper legendary-tier arm in the meantime. After further grinding — later shown at 15.7 million strength — the player reported obtaining the target: "Spawn the mythic arm, please. 15 million mythic arm, please... Finally, guys, I got it. That is looking so cool."

This supports earning currency through lifting cubes until the 15 million listing can be purchased. The exact strength threshold that unlocks the listing was not shown in the footage, so treat the 15 million figure as an observed price rather than a guaranteed current one — check the shop in-game.

The reported Robux route (300 Robux)

A different recorded session shows a Robux route: the player states they are buying Mythic Arms for 300 Robux ("We are going to buy for 300 Robux the mythic arms. Complete scam"), after which their strength gains rise sharply ("because of the mythic arms we got, our strength is just dummy thick"). However, the same session later shows purchase failures and the player claiming Robux was taken without receiving further purchases ("It stole my Robux"), so whether the 300 Robux transaction actually delivered the arms cannot be confirmed. One community wiki independently frames the Mythic-labelled arms tier as Robux-only ("No (Robux)"), which conflicts with the in-game footage showing a 15 million currency shop listing — treat the currency-versus-Robux question as currently inconsistent and check what payment your in-game listing asks for.

Mythic as a roll result, not a shop purchase

Do not confuse the Mythic Arms shop listing with the "Mythic" rarity in the arm roll system. Two recorded sessions show Mythic as a random roll result: one player rolling the arm mystery box gets a mythic result at a displayed 1% chance (a 600x arm), and another exclaims "MYTHIC. WE JUST GOT MYTHIC... That's a 1% chance," later confirming "I already have those mythic ones right now. I'm using them right now." So a Mythic result can arrive through rolling at a stated ~1% chance, and rolled mythic arms can also be bought once revealed — though the purchase price at those moments was not captured.

Where Mythic Arms sits in progression

Community-sourced tier lists place Mythic Arms near the top of arm progression: tier 7 of 8 in the Paper → Foam → Cotton → Iron → Steel → Crystal → Mythic → Celestial order, rated "Very High" push-up speed, for "Pre-final cube farming" use, with a "Very High" cost bracket and a "Very high" Strength threshold to unlock. Reaching the top tiers typically requires a deep grind and, for the final Celestial tier, premium currency. Since these placements are community estimates rather than official values, verify the unlock requirement and current price in your own arm shop before committing to the grind.