“Tough” quests are those that require at least one key item to complete, and involve either a difficult boss location, a time-consuming check, or at least one terminal key item.

Since the Darkness Crystal and underground access unlock quite a few of these checks, the lunar and Feymarch boss location quests are weighted to balance their frequency rate against the other quests.

When objectives are generated with the Orandom:tough_quest flag, they are chosen from a pool of 14-22 quest objectives.

The following quests are always in the tough quest pool:

• Burn Mist
• Cure the Fever with the Sandruby
• Complete Cave Magnes
• Complete the Tower of Zot
• Liberate Baron Castle
• Defeat the Baron Basement Throne
• Launch the Falcon
• Trade Away the Rat Tail
• Trade Away the Pink Tail
• Return the Pan to Yang's Wife
• Complete the Sealed Cave
• Destroy the Super Cannon
• Have Kokkol Forge the Legend with Adamant
• Defeat the Giant of Bab-il

Each of these quest objectives has a 60% chance of being in the tough quest pool:

• Defeat the King of the Feymarch
• Defeat the Queen of the Feymarch
• Complete Cave Bahamut
• Complete the Murasame Altar
• Complete the Crystal Sword Altar
• Complete the White Spear Altar
• Complete the Ribbon Room
• Complete the Masamune Altar