LEVEL sets the level index.
MODE sets the mode to 0 (normal) or 1 (duel).
BACK sets the level background.
REFRESH_DOOR sets the frequency of entries of the people.
CREATURE sets who can be met in the level.
Number sets the probability.
You can have up to 24 creatures per level.
DECORATION puts the destroyable thing in the level.
MAX_DOOR_OPEN is clear (isn't it :)
TIME is not implemented yet. Set it to 0.
MAX_BANDIT sets how many bad boys you have to kill if
you want to go to the next level.
NEXT sets the index of the next level.
KOMIX_START sets the *.cmx file that will be played before
the start of the level.
KOMIX_FINISHED sets the *.cmx file that will be played
after the finishing of the level.
BULLETS sets the starting number of the bullets.
AMMO sets the ammo limit per level (if you want to force the
players to shoot carefully).
END_OF_LEVEL ends the paragraph.