Frosted Bun is a rare enemy in Mother 3, encounterable on Snowcap Mountain. Lucas and friends can only initiate battle with one by checking it; otherwise, the Frosted Bun will not attack. Its out-of-battle sprite makes it look like an oblong snowball lying on the ground, but in-battle it appears as its name implies and is leaking a brown filling. It knows Paralysis α, Brainshock Ω, PK Freeze γ, and PK Thunder γ.

Its battle sound is Battle Sound 36 which falls under Code Numbers 867 for regular attack, 868 for Smaaaash! and 869 for Miss. However, hacking is required to get it to attack physically because it only uses Psi and is immune to Kumatora's Brainshock.