This is a very late beta for Wizard of Wor. The only real
differences are that the number of scanlines is lower than in the
final version (260 vs 263) and that you can start the game with
the fire button. It's unknown why these changes were made
but the difference in the scanline count may have been to bring it
closer to the standard of 262 or because a routine needed more
computation time. As for why the start with fire button
option was removed, it maybe been removed to free up some space as
the final version of the rom is almost completely full and has
some extra code (most likely for bug fixes) in it.