You get the new Moonspearls in Roblox Rivals by progressing through the current spear-related update path, which appears to be tied to the new spear unlock/grind in the season 3-era content rather than a simple shop purchase. Recent community videos also point to a grind-based unlock for the new Spear, so the safest expectation is that Moonspearls are earned or used through matches, missions, or an update-specific reward track rather than instantly claimed.

What players are doing

  • Grinding matches to unlock the new spear.
  • Checking the latest update content for new weapons/items tied to that unlock path.
  • Looking for code-based rewards, though those usually grant keys, wraps, or similar goodies rather than a specific weapon currency.

Practical steps

  1. Open Rivals and check the newest update notes or in-game event section.
  2. Look for a spear, moon, season, or reward-track tab connected to the new item.
  3. Play matches and complete any listed objectives, since recent posts suggest the unlock is earned through play.
  1. If the game has a code or reward menu, redeem current codes for extra resources, but do not expect every code to give Moonspearls.

What is still unclear

The public results I found confirm the new spear is being unlocked and discussed, but they do not clearly show an official, detailed Moonspearls guide from the developers. Because of that, any exact “do X to get Moonspearls” claim would be guesswork, and the most reliable answer right now is that it’s likely tied to the latest spear update progression.

Search note

Community posts are currently treating the new spear as an update-grind unlock, with players asking for the fastest way to get it.

TL;DR: Check the latest Rivals update, then grind the spear-related progression path; that’s the most likely way Moonspearls are obtained right now.