Uploaded October 2016 | Updated September 2026, 2 weeks ago
Have you ever wondered what's outside the normal map boundaries? Here's a detailed analysis of out of bounds geography in Generation I Pokémon games.
Full-sized map of OOB Pallet Town:
zzazzdzz.github.io/oob-diagrams/OOB_PalletTown.png
Full-sized map of OOB Sea Route 20:
zzazzdzz.github.io/oob-diagrams/OOB_SeaRoute20.png
To patch the game to ignore any map connections change the three following bytes at offset $07BA to 0xC3, 0xC6, 0x08. This hack only works on English Red/Blue.
The OOB diagram in full resolution:
zzazzdzz.github.io/oob-diagrams/OOB_Diagram.png
Have you ever wondered what's outside the normal map boundaries? Here's a detailed analysis of out of bounds geography in Generation I Pokémon games.
Full-sized map of OOB Pallet Town:
zzazzdzz.github.io/oob-diagrams/OOB_PalletTown.png
Full-sized map of OOB Sea Route 20:
zzazzdzz.github.io/oob-diagrams/OOB_SeaRoute20.png
To patch the game to ignore any map connections change the three following bytes at offset $07BA to 0xC3, 0xC6, 0x08. This hack only works on English Red/Blue.
The OOB diagram in full resolution:
zzazzdzz.github.io/oob-diagrams/OOB_Diagram.png
