Legend of Zelda : Level 3:  by Mystery Man
--To reach Level 3 from Level 2, go: South, East, South, West, West, West, West,
West, South, West, West, West, West, West, South, East.

--To reach it from the origin, go: North, West, West, West, West, South, East.

From the first room, go West and kill the Zol to get a key.  Go North and kill these Zol to get another key.  Go North, yet again, to find 3 Darknuts.  Kill them and go West.  Kill the Keese and get the Compass, then open the locked door to the West and go through.  This room will be full of Darknuts.  manage to kill
them and the South door will open.  Go through and then go down the staircase, and grab the Raft, then go back.  Head North twice and grab the key.  Go East, kill the Keese, get the key, then go East through the locked door.  Go North through another locked door, and kill the Zol.  Then move the left-hand stone to open the sealed door, and go North to a Wise Man.  Go West, grab the key, and kill the Keese to re-open the door.  Go South twice, then through the locked door to the East.  Grab the Map, then bomb to the East to reach the boss, Manhandla!
 

Things to do after Level 3:
From Level 3, go: West, North, East, East, East, East, South,
then East ALL the way.  Now go North, North, North, North, and
then use your Raft to leave the dock.  You will be taken to an
island with a dungeon entrance-looking thing.  Go in to get
yet another heart!  Now go South 4 times then go West until you
reach the origin, then head North, West, West, North, North. 
You should be on an island with Level 4!