Ok been playing through the 1st quest and is been a lot of fun! Found the fist glitch. In LVL2, LVL3, LVL5, LVL6, LVL7, LVL8 & LVL9 when you pick up the map it appears over the heart meter(upper left corner) instead of under the name of the level(upper right corner). This does not happen in LVL1 & LVL4.
Additionally, whenever Link comes out of a dungeon he comes out facing backwards.
On the screen for the short-cut paths, the one near the graveyard has the stairs in the wrong position. It should be inbetween the rocks but it's up and to the right.
On the overworld, screen "K6"(alpha horizontal, numeric vertical), there is both a burn bush and a push rock, each opening to a different spot and neither leading anywhere(enter either and it just warps you back to the same screen in the overworld).
On the overworld screen "P3"(LVL8 entrance) there is a fairy placed but there is also a tree which blocks the refill "trigger" spot.
In LVL5, there is a screen with stairs that have 3 Blue Skull Bubbles. When entering those stairs is hard-locks the game. There is another set of stairs near the entrance that also hard-lock the game. I'm betting that they were intended to be connected. I looked at the room with an editor and discovered that each set of stairs are not linked to go anywhere, thus the hard-lock.
In the 1st quest where you find the letter, it is also flagged to be in the 2nd quest, but there is a another location in which a player can also get the letter, effectively having 2 places to get the letter in the 2nd quest.
In LVL6 Zelda asks "Did you get the sword from the man above the waterfall?", but that location gives the Potion/Heart Container choice in both quests. Also, many rooms were filled with Red Skull Bubbles, but not one Blue Bubble was found anywhere in the level. This needs correction.
In LVL7 there is a room with a "Grumble, Grumble", yet the room is easily exited with a bomb to the left. Was this intentional? As is, it's a bit pointless.
In LVL9, in the room where the player is asked "Did you find the Red Tunic?" there is a single block glitch in the wall after the text finishes typing out. In one of the tunnels leading from a Patra the is a Red Tunic in the wall between the stairs(out of reach). And last, after beating "Gannon" the game leaves a key and does not trigger the shudder door leaving the player trapped requiring a reset to escape.
Overall, this looks damn good! I like it a lot. Just needs a bit of love and refinement and this will be a LOZ1 mod that stands out! Very nice!