If hacking means help to find glitches, I think it's a good method.
Wanderer : sure ! That's why I put "So no Myau and Odin and so much !!" : the so much was for the "link" about all the items you need to complete the quest at the end
Right : The manhole in the spaceport is impossible to find without Lutz because he knows it (only for this reason).
But maybe with a hacked game where all those transitions were aborted ? Maybe it could become possible.
Ah I didn't think about the killed characters not resurected !;) Very hard to bear with only Alisa...