I received a DS Dev cart with an early version of the Lock's Quest game, you can see differences as I play in mainly the character art during dialogue sections. There is a revision number and a couple of differences other than dialogue art. For some reason i auto fail the object right now (i have tried twice) so i have not tested further.
Left is retail, right is the early version.
EDIT: real hardware it works fine on the battle but not in an emulator?
EDIT2: it was a dump issue, trimmed dump doesnt work but a full 256mb dump was fine, probably an issue with them accessing some further out memory for no reason.