The following guarantees are given:
General
- You will be able to access every item and every town and palace, however there may be some non-essential locations that are not accessible.
- Each location will use its proper terrain type. Towns will look like towns, caves will look like caves, etc. (with the possible exception of the vanilla maps, see below)
Death Mountain
- There will be one rock, which is guaranteed to contain one of the two items
Maze Island
- There will always be two items on Maze Island
Guarantees
It is guaranteed that you will be able to reach every normally accessible location on the world map. That means if you need a spell (like jump or fairy) or an item (like the hammer or the flute) to access certain areas of the map, you a guaranteed to be able to get those spells or items before you need to access those areas. It also means you are guaranteed to be able to collect every spell and item in the game.
Here are some helpful tips for navigating the overworld map:
Anywhere that requires the jump spell can also be maneuvered with the fairy spell.
The bridge in Saria can be crossed if you have the fairy spell.
Chimneys and doors can be entered as a fairy. To enter a door, cast fairy while standing on the ground and make sure the fairy is touching the ground when you try to enter the door. To enter a chimney, crouch before casting fairy and then fly into the chimney.
You can use the boots to cross from the northern section of East Hyrule to the middle section of East Hyrule.