I’m not exactly sure how it works in TP to begin with, but so far, no.
Getting Link on the title screen is pretty simple though.
1) Die/kill yourself
2) Select continue
3) Immediately reset the game
You can roam around skyloft and do quite a bit. You start out with nothing. I’m not sure of the specifics because a lot of it is pretty weird, but doing certain things “unlocks” parts of your inventory, usually, it seems from file 3. For example, collecting your first stamina fruit while out of stamina seems to give you a sword. Swimming into the barn (If you have the dragon scale, probably from file 3) unlocks B items for use. Going into different maps (houses, the shop, the cave) gives you a tunic. Leaving these places usually crashes the game.
Activating secrets, ie. Pushing the box, rolling into a tree with money activates the cutscene where the light beam opens the storm cloud. After this, Link is stuck in place and can do nothing. Talking to a bird statue and leaving a house at night also start the cutscene and freeze Link. This doesn’t actually crash the game, and you can still select a file. Jumping off sklyloft gets Link into the same frozen state.
Pressing 1 or + crashes the game. I’m unsure what saving at the bird statue does, and many things have yet to be tested. So mess around and try as much as you can, and maybe this will get us something in a file we aren’t supposed to have.
Edit: This video shows me messing around with it from when I accidentally discovered it to when I had to leave.
http://justin.tv/theonly0/b/303895004