Dragon Spirit trace play mode

[hyrulebr]

Anyone know what the option "TRACE PLAY ON" do in Dragon Spirit?

After enable it, any button that I press in the gamepad (a mega drive controller with an msx/x68000 adapter) I get a instantly continue countdown!

If I don't press anything the dragon starts to move alone for a few seconds before some enemy hits it.

Very weird!

[mez]

noting weird here :
start a normal game,
loose,
enable the trace mode,
enjoy : it "replays" your last game

[hyrulebr]

I would never figure out this alone! Thank you!