If you catch hot spring water in a bottle from Bottle Duplication, you can overwrite some of the memory addresses in the game. Unlike Ocarina of Time, the addresses that can be changed are mostly useless. Regardless, it still has some interesting effects. Some of the effects include pulling a rock sirloin out of thin air, setting time to a specific time of day, and becoming Fierce Deity Link.
Simply duplicate a bottle over any item slot, then catch hot spring water in it. Instead of programming each slot's timer individually, the game does math depending on which slot the hot spring water is caught in. So thanks to bottle duplication, we can now write to memory addresses that are near the normal hot spring water timers.
Here are some of the effects you can get from each slot.
- Couple's Mask: Rock sirloin when you load a new map
- Mask of Scents: No apparent effect
- Bunny Hood: Rock sirloin when you load a new map
- Don Gero's Mask: No apparent effect
- Keaton Mask: No apparent effect
- Blast Mask: No apparent effect
- Postman's Hat: Changes time to midnight, become Fierce Deity on loading a new map
- Kafei's Mask: Changes time to 2:33 AM, become Fierce Deity on loading a new map
- Garo Mask: No apparent effect
- Kamaro's Mask: Seemingly random effects. Can result in the "Infinite Ocarina Glitch," which itself can ruin your save. Sometimes hard crashes the game on loading a new map. "Infinite Bow Glitch" can also occur. These are not the only effects, however. Click anywhere on this line to check all documented stuff about Kamaro BA Click here for more information about Kamaro BA
- Stone Mask: No apparent effect
- Troupe Leader's Mask: No apparent effect
- Captain's Hat: Change time of day, gives rupees, curse, become Fierce Deity on loading a new map
- Bremen Mask: Changes time to 2:33 AM, become Fierce Deity on loading a new map
- Mask of Truth: No apparent effect
- Romani's Mask: Effect similar to Gibdo's Mask
- Great Fairy's Mask: No apparent effect other than having the Great Fairy's Mask equipped for a frame or so on loading a new map
- All-Night Mask: No apparent effect
- Gibdo Mask: Messes with time. Can result in 4th day and wrong warps
- Giant's Mask: Rock sirloin when you load a new map
- Zora Mask: No apparent effect
- Goron Mask: No apparent effect other than having the Great Fairy's Mask equipped for a frame or so on loading a new map
- Deku Mask: Extremely fast clock speed similar to Gibdo and Romani BA.
- Fierce Diety's Mask: No apparent effect
It appears that item BA has no effect in MM3D, but more testing needs to be done.