GRAIN ROT Tips

GRAIN ROT Constructs: The Little Buddies and Yellow Gumballs

Constructs are the little buddies. Yellow Gumballs unlock the last three, and the Clown boss below depth 10 guarantees one.

What constructs are

Constructs are the little buddies — that is how a player described them directly in the Yellow Gumball thread when someone asked.

Yellow Gumballs unlock the last three

The connection between the two:

"You need them to unlock the last 3 constructs currently in game."

Note currently in game — the number is a snapshot of what has shipped, not a permanent total.

Where Yellow Gumballs come from

From the same thread:

SourceDetail
Clown boss, below depth 10"a guaranteed legendary Gumball on the podium to begin the boss fight"
Boss rooms generallyThe thread's author saw one in their first boss room
Round 7"sometimes find at round 7 but it's rare"
Level 5One player found one at level 5

So they are not exclusively a deep-layer item, but the reliable source is the Clown encounter below depth 10, where one is guaranteed on the podium.

The Clown is a separate boss

The Clown is described as findable and fightable below depth 10, distinct from the Corrupted Elite portal encounter.

⚠️ Weapons break in these fights. One player in the thread found a Gumball at level 5 and still lost the boss fight because their weapons broke.

What is not confirmed

If you have unlocked one and know what it does, that is information this page is missing.