Blue: Uncommon knife in Murder Mystery 2
| Rarity | Uncommon |
|---|---|
| Type | Knife |
| Origin | Rainbow Box |
| Availability | Obtainable now |
Boxes that hold it
| Box | Price | Chance of the rarity |
|---|---|---|
| Rainbow Box | 1,000 Coins or 100 Diamonds or 1 Mystery Key | 15% |
For Common to Legendary the wiki prints one number per rarity on every row of the box, so no per-weapon chance or expected box count is shown.
FAQ
How do I get Blue in Murder Mystery 2?
Origin of Blue on the wiki: Rainbow Box.
What is the chance of Blue from a box?
Blue, Rainbow Box: 15%. The wiki prints one number for every Uncommon row of the box, so it is the chance of the rarity, not of Blue alone.
What does one try for Blue cost?
Blue comes from Rainbow Box, which costs 1,000 Coins or 100 Diamonds or 1 Mystery Key per box on the wiki.
Can I still get Blue?
For Blue the wiki lists a way to get it now: Rainbow Box is in the shop.
Also in Rainbow Box: Pink · Red · Brown · Orange
Source: Blue (rev 171882, Oct 28, 2025), Rainbow Box (rev 178678, Sep 1, 2026) · Murder Mystery 2 Wiki (Fandom), CC BY-SA 3.0. Numbers and names restructured into tables; wiki images and prose are not used. Not affiliated with the game's developers or Roblox Corporation. Data checked: Oct 10, 2026.