[eye2eye]

when a command (here a conditional jump) is removed by the two
assembly commands NOP and NOP (coded bei 90 90) the jump (or
whatever f.u.c.k.i.n.g. command) is eliminated and therefore can
never be performed. It is gone, killed, blown to eternity - got it??

If you ever looked to the code you come to know that we are
here at a script-interpreter, when the command
"CS" is found then the next step within the game is done,
i.e. change position of game character. In cavern2 we have
not the command CS (guess it means "continue script") but
there is the control-word "montagne" (which stands for next/
2. Level) and therefore it jumps to the intro.
This is normally in the demo-version the sign to end up (because
there is no 2. level!!) and go to the beginning, because demo has
ended here. But we have the full version from deviance with
f.u.c.k.i.n.g. demo-EXE, so we must pass this sign
- that's done here.
No more comment on this, I'm not your nanny...
Just do it and you will see that it works!