Four-Eyed Spud

#Overview

Four-Eyed Spud raises luck by 0.1 per level, up to 0.5 at level 5. The in-game tooltip for luck sums up its main uses: “Better odds of a fourth level-up card, bigger chests and rarer items.”

It is the catalyst for Factory Reset (from Reset Button) and Loaded Dice (from Spud Dice). At level 5 it also evolves Wandering Eyes into All-Seeing Spud.

#How it works

Luck changes these rolls, and nothing else in the simulation code. Values assume Four-Eyed Spud is the only luck source:

The rarity numbers are the Legendary share of item rolls, computed from the weights on Chests. The golden harvest roll is in the Seed Potato code.^[1] A golden harvest also drops gold coins. Reset Button normally erases most pickups on screen when it fires, and each one survives with the chance above.^[2] Factory Reset keeps all drops (“Clears the screen, keeps the drops, heals Tibo.”), so luck no longer matters for it.

Luck does not change the dice. Spud Dice and Loaded Dice roll a plain 1–6 with the run's random generator.^[3]

Other luck sources are Lucky Peel (+0.05), Cursed Crown (+0.2), the auras of the dogs Scout, Zelda and Zelda & Link, and Spud Shrine blessings. Luck has no cap, but the 4th-card chance stops improving at 1.0 luck.

#Tips

• Take Four-Eyed Spud for Loaded Dice or All-Seeing Spud, not to improve the dice themselves.
• The 4th card is the most visible gain. Each extra card gives you more choice on every level-up for the rest of the run.

#Levels

Totals are added to Tibo's stat sum. How each stat turns into a multiplier (caps and diminishing returns) is on Stats.

#Catalyst for

Result	Also needs
Factory Reset	Reset Button at max level
Loaded Dice	Spud Dice at max level
All-Seeing Spud	Wandering Eyes

#Names in other languages

Verified: the name the game shows when another language is selected in Settings, from its translation files.^[4] See Languages.

#Data

{
  "id": "four-eyed-spud",
  "stat": "luck",
  "perLevel": 0.1,
  "maxLevel": 5,
  "weight": 80
}