Hidden shop 

Go to Rennu Village (Past) and find the locked
door next to the Target Aim mini-game (it can 
now be opened, allowing access to a shop that
sells all items for 100 rupees).


The 6th Dungeon:

To beat the 6th dungeon, you must have both 
mermaid keys from the past and the present to
then you must do things in the "Past dungeon" 
to effect the "present dungeon."


Wealth Ring:

You get the Wealth Ring when you've collected
10 000 Rupees.


Beat the beetle on level 2:

At the entrance to level 2, where one is in 
the past. The guide book tells you to use your
shield to ward off the charging beetles and 
attack them with your sword. I found that that
didn't work. I discovered that if you sprinkle
two mystery seeds on each beetle (you have to 
do this really fast), the beetle will be 
carried off in a whirlwind. 


Giant Cucco:

Before you start try this trick first make sure
you have a "Mystery Seed." Now walk north a bit
from Horon Village until you come to Talon's 
house. Inside you will find a number of Cuccos.
Attack one of them with your sword until it 
gets mad and starts to attack. When it does 
throw a Mystery Seed at it and it will grow to 
a much larger size.