How to Obtain
Knife Box 1
About the Rainbow (Knife)
Rainbow (Knife) is a Rare-tier weapon in Roblox Murder Mystery 2, obtainable from Knife Box 1. Originally a merchandise promo item, this colorful blade now drops from crates and can be traded. With matching gun and effect partners, it's popular among MM2 players who enjoy coordinated cosmetic sets for murderers.
Trading Tips
As a low-tier rare, trade for 4x T1 Uncommons or bundle with its partner gun for better deals. New players often seek this for its vibrant colors, making it good starter trade fodder.
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