This video shows a glitch in Oracle of Ages I like to call text warping. I assume this glitch works in Oracle of Seasons as well, but I do not know that game as well, and I have found no places where it is possible to activate it. Text warping in Oracle of Ages allows you to get off the map, so I show quite a bit of that as well.
A quick note before I get started: this does not require any sort of hacking, cheat codes, etc. You can do this on a real game cartridge as long as you have really good timing and some patience.
The glitch is pretty simple. All you do is walk out of a house, cave, or dungeon on the exact same frame that a text box appears. If you do this, you will not leave the area; instead you will walk down a screen, generally taking you somewhere you would not expect. So far, there are only two ways to make this happen.
The first way was discovered a while back by peteyboo and can be seen in this video: http://www.youtube.com/watch?v=mXlcTeC1zMo
This is useful in a speedrun because you can get pegasus seeds early.
The second way is to use the text from an owl statue. To my knowledge, there are only three owl statues near the entrance to a cave/dungeon.
The first one is behind the ruined moblin hideout. This warp is not very useful, although it may be faster than descending the mountain normally. (0:52)
The second owl statue is in the cave leading to level 6 in the present. This takes you to the overworld in the past off the right side of the map. Notice that some tiles are glitched, but are fixed by pausing or viewing the map. You will be stuck, but playing the harp can get you to an empty screen you can walk around on. You can now explore this area. (1:32)
A few things I show about this secret world:
-walking back onto the map usually gets you stuck in a wall. There are a few places where this is not the case. Also playing the harp gets you stuck in an infinite warp. More on this later. (2:53)
-any doors you can get in just take you back to themselves and do not reset your save/quit point (3:59)
-there is a chest in the present I see no way of getting (4:32)
-there is a chest in the past that contains 1 rupee (7:05)
-you can get to the top of the maku tree from both sides, but you get stuck and cannot actually access anything (8:29, 14:04)
-similarly, you can get to the cave under Ambi's palace, but are stuck in a wall (11:03, 14:57)
-the map wraps around; if you go off the top, you end up at the bottom, if you go off to the right, end up on screens on the left side of the map (12:10)
A note about the infinite back and forth warping: pay careful attention to the screen I first time-travel, you will notice that when I return there a second time, it has changed into the screen from the other time period. This is very apparent when I get in an infinite warp in the south ocean. (16:28) Using this infinite warping you can get through the hazy time travel barriers, but unfortunately you are still stuck warping forever. (18:25)
Other than the obvious (save/quit, gale seeds,) I found three ways out of the secret world.
-underneath the map in the past, if you walk up, you sometimes end up in deep water. If you have the mermaid suit, you can do a small amount of swimming around. The underwater and screen to screen rock formations do not line up because you're never supposed to get here. This allows you to get up on some rocks that are open ocean tiles in the present. (16:50)
-If you re-enter the map at the top of the screen with the entrance to level 1, you end up in shallow water. Swimming up a screen onto either of the two straight mountain tiles (not the corners or the waterfall) allows you to jump down to underneath level 1. (17:52) I use this fact and the infinite warping to almost get to level 8 early, but you keep warping no matter what you do. (18:52)
-Going down from the room with the maku tree music takes you right to the top of talus peaks. (19:40) Pausing in the room with the maku tree music seems to load I different tile set, so you can explore most of the overworld with glitch tiles. Everything acts as expected, though. It just looks different. (19:47)
The third owl statue is at the entrance of level 2. (21:54) You need the seed shooter to get this one at a distance close enough to the door. You end up on blank screens that surround the map. Again, the map wraps around, but this time, jumping back into rooms can be done as long as the wall is one tile thick. This means you can walk straight to the end of the dungeon. Unfortunately, you cannot just leave with the feather and continue the game because Moosh will not appear until you have finished level 2. However, I believe a TAS can skip Moosh so I think this trick allows a TAS to skip half of level 2.
Hopefully someone can find some way to get a little bit more out of this trick, and hopefully someone can find a place where it works in Oracle of Seasons.