Continuing the discussion from the other thread here:
I'm not sure what to think about the Serpent. The levels and Djinn the guy uses seem troublesome, especially for any%, but it might be worth it to skip most of Gaia Rock. The TAS rigs random battles to get Exp, but it seems slow, and the levels aren't as high anyway. Chances are, it's still possible to do it at lower levels; it seems like you just need to survive long enough to get to a second summon rush. The problem is, the other parts of Gaia Rock don't actually take that long, from the looks of it; any preparation that takes an extensive amount of time wouldn't be worth it. But it's worth considering, especially for 100%.
On another note, I found another use for the Retreat glitch in Air's Rock, this time for the exterior: From the start of the sand maze, take the direct route right up to the top to get to the first ladder you can use to reach the second room. You can't proceed directly to the rest of the room from there, but that's fine: go as far to the right as you can in the cliff area, activate Retreat mode, and save. When you reset, you'll wind up back in a glitched version of the first room; you should be on the ground level, where you can move around as normal. The whirlwind stones are now gone, which makes it impossible to clear the sand, but their absence leaves a route you can take to get to the ladder on the far right side to get to the cliff area again; from here, you can continue all the way through the cliff area and get to the interior. (There shouldn't be any sand in the path you need to take in the glitched room, so not being able to remove it isn't an issue.) This skips almost all of the sand maze, and I think it skips part of the first cliff room as well. I'll see if I can make a video of it.
We may be able to find other shortcuts with similar methods, although it probably won't work just anywhere. Save warping to get out of bounds seems to have more issues than in GS1, though: it doesn't seem possible to go really far to the left, just the top, where you can find some doors that generally don't seem as flexible as say the GS1 doors: the Gondowan Cliffs skip is great, but it's still limited to an exit from the main room.
I'm not sure what to think about the Serpent. The levels and Djinn the guy uses seem troublesome, especially for any%, but it might be worth it to skip most of Gaia Rock. The TAS rigs random battles to get Exp, but it seems slow, and the levels aren't as high anyway. Chances are, it's still possible to do it at lower levels; it seems like you just need to survive long enough to get to a second summon rush. The problem is, the other parts of Gaia Rock don't actually take that long, from the looks of it; any preparation that takes an extensive amount of time wouldn't be worth it. But it's worth considering, especially for 100%.
On another note, I found another use for the Retreat glitch in Air's Rock, this time for the exterior: From the start of the sand maze, take the direct route right up to the top to get to the first ladder you can use to reach the second room. You can't proceed directly to the rest of the room from there, but that's fine: go as far to the right as you can in the cliff area, activate Retreat mode, and save. When you reset, you'll wind up back in a glitched version of the first room; you should be on the ground level, where you can move around as normal. The whirlwind stones are now gone, which makes it impossible to clear the sand, but their absence leaves a route you can take to get to the ladder on the far right side to get to the cliff area again; from here, you can continue all the way through the cliff area and get to the interior. (There shouldn't be any sand in the path you need to take in the glitched room, so not being able to remove it isn't an issue.) This skips almost all of the sand maze, and I think it skips part of the first cliff room as well. I'll see if I can make a video of it.
We may be able to find other shortcuts with similar methods, although it probably won't work just anywhere. Save warping to get out of bounds seems to have more issues than in GS1, though: it doesn't seem possible to go really far to the left, just the top, where you can find some doors that generally don't seem as flexible as say the GS1 doors: the Gondowan Cliffs skip is great, but it's still limited to an exit from the main room.