I’m not finding a reliable match for “hot rad” in Overture right now, and the results I could verify mostly point to other Roblox games or to “Hot Rash,” not the thing you asked about.

What I can say

  • In Roblox search results, “Overture” is showing up tied to other experiences and videos, including a recent Overture walkthrough and a Sol’s RNG “Overture” clip, which suggests the term may be getting mixed up with a different game or item.
  • The closest clearly documented “hot” result I found is Hot Rash in Roblox Hours, with a guide describing unlock requirements like completing the main campaign and farming Tempo points.
  • Because of that mismatch, I don’t want to guess and give you the wrong unlock method.

Best next step

  • Check the exact item or ability name in-game.
  • If you meant Hot Rash in Roblox Hours, the guide says you need to finish the campaign, unlock a few other Hosts first, and farm roughly 500–800 Tempo points.

Clean answer

Right now, I can’t verify a legitimate “Hot Rad” unlock in Overture from the available public results, so the safest answer is that the name is probably misspelled or refers to a different Roblox game/item.