With this flag on, go up to any NPC and hit Y to remove them from the map. Any screen transition will reset any “removed” NPCs, but you can remove them again.

NPCs are not limited to just townspeople. You can remove monster NPCs, various random objects, locked doors, and even invisible barriers.

Note that any removal of boss NPCs that result in skipping the fights entirely will also bypass any rewards resulting from that fight event. It is possible in some cases to soft lock a seed if you have skipped these fights but are required to acquire certain Espers, kill certain bosses, or complete a certain number of checks. More details are below.

Y NPC provides access to:

• All of Magitek Factory: remove the NPCs blocking the entrance when gated by Celes. You can then remove the Ifrit & Shiva and Number 024 NPCs as well, skipping those boss fights entirely.
• All of Zozo, in both worlds, including Mt. Zozo and its reward. For Mt. Zozo, remove the NPC door that you normally need to buy Rust-Rid to open. For Zozo Tower, remove the Dadaluma NPC blocking the last stairwell. Note that in character gating there will be no reward at the top of Zozo Tower if you haven't recruited Terra.
• figaro castle basement/buried figaro castle WoR (you can bypass the door to the shops and beds even while the castle is buried)
• narshe weapon shop/cursed shld
• albrook dock in WoB
• imp camp hit/kick/leave chest without cutscene
• floating continent final reward without fighting atmaweapon and nerapa
• opera house left side door (no need to flip the right side switch)

Potential soft locks/logic game breaks are:

• imp camp (removing kefka or the check reward npc)
• collapsing house (removing the kid/kid not there without event at town entrance/timer kill)
• phantom train (removing the ghost that blocks the door)
• getting airship stuck on island after leaving on the raft/Cid cutscene
• mtek (removing Cid before the mine cart ride, removing the ifrit & shiva/number 024 npc's and completing the cart ride, entering the mtek factory after completing the Cranes fight and attempting to leave Vector normally)
• doma siege (removing the boss)
• floating continent (removing the first check reward at the beginning, removing the atmaweapon npc and completing the exit sequence)
• figaro castle (exit while the castle is in transit to/from kohlingen after finishing the tentacles check - you'll appear on the world map but the castle will still be buried)

Other notes:

• opera - delete ultros on the catwalks. You'll have to exit the catwalk screen to reset - go back to the left hand stairwell and then back to the catwalks
• owzer's mansion cycling doors can be removed
• collapsing house WoR - if timers are on, the timer will be started as soon as you enter the doorway. you can only reset this timer by completing the check or starting another timer (e.g. begin the Opera check)
• hidon NPC is delete-able. going on the teleporter will reset this
• flowers/letter in mt zozo