1=multiply creature speed by parameter3 for time parameter1 with creature visual effect from weapon parameter2, parameter4=disable speed change when bullet hits (0=no/1=yes)
2=start alien attack
3=drop item parameter1, amount parameter2, random area size parameter3 pixels, maximum amount of similar items in area parameter4 (0=infinite)
4=increase creature's bar parameter3 with parameter1 (if parameter2=1, don't increase over maximum or decrease below minimum)
5=activate scanner with distance parameter1
6=set targeting beam, type parameter1 (0=disabled, 1=normal, 2=turns green when hits enemy), length = parameter2 + weapon length * parameter3
7=set light parameter1 size parameter2 to creature (if parameter1=-1, disable light), attached to (parameter3, 0=hands, 1=legs, 2=head)
10=drop creature number parameter1 side parameter2 (-1=same side) tactic parameter3 (-1=default) tactic2 parameter4 (-1=default). Player can switch between a friendly creature's tactics by right clicking the creature. Don't forget to set parameter3 to -1 if you're not planning on changing the default tactic specified in creatures.dat.
11=change maximum bar parameter1 amount by parameter2
12=change armor level to parameter1
13=enable creature detector with distance parameter1
14=play sound parameter1 (from sounds.dat) with volume parameter2
15=change creature into creature number parameter1 for time parameter2 (-1 for infinite) with creature visual effect from weapon parameter3
16=give item parameter1 amount parameter2
17=set creature's bar parameter3 to parameter1
18=increase player's body temperature by parameter1
19=drop plot_object parameter1, object size parameter2, random area size parameter3 pixels, maximum amount of similar items in area parameter4 (0=infinite)
20=enable large map
21=teleport to area parameter1 (if -1, game finds the right area) plot_object parameter2, parameter3: 0=don't transfer other creatures 1=transfer other creatures
22=change side to parameter1 target for time parameter2 with creature visual effect from weapon parameter3
23=continuously increase bar parameter3 by parameter1 for time parameter4 with creature visual effect from weapon parameter2
24=fire weapon parameter1, times parameter2, (parameter3, 0=normal direction, 1=towards nearest enemy, 2=random direction, 3=shoot in direction parameter4), parameter4=shoot direction (only applicable if parameter3=3)
25=show animation parameter1, and if (parameter2, 0=continue game, 1=end game)
26=fire particle parameter1 times parameter2 with parameters (spread, speed, time) taken from weapon number parameter3
27=make light number parameter1 for time parameter2 (-1=infinite) size min parameter3, max parameter4
28=bar parameter1 increased by bar parameter2 * parameter3
36=shake screen power parameter1 time parameter2 milliseconds
37=start rain for time parameter1 (0=stop rain)
38=change game speed to parameter1 (don't set it to negative)
39=show bar parameter1, (parameter2, 1=show, 0=hide)
40=destroy plot_objects parameter1 from area size parameter2 pixels (not entirely accurate, use with care)
41=destroy items parameter1 from area size parameter2 pixels (not entirely accurate, use with care), parameter3=maximum amount of items to delete (0=all)
42=increase maximum carry weight by parameter1
43=return creature to previous frame position
44=increase player's bar parameter3 with parameter1 (if parameter2=1, don't increase over maximum or decrease below minimum)
45=prevent creature from using weapon parameter1 (-1=all weapons) for time parameter2, with creature visual effect from weapon parameter3, parameter4: 0=individual weapons 1=weapon classes
46=change creature's AI tactic parameter1 (0=primary, 1=secondary) to parameter2
47=start dialog parameter1 (from dialogs.dat)
48=pick up nearest creature of (parameter1, 0=type, 1=class) parameter2, maximum distance parameter3, side parameter4 (-1=same, -2=any)
49=attach camera to (parameter1, -1=player, 0=this creature [distance parameter2 from head], 1=this position), for time parameter3 (-1=infinite)
50=player controls nearest creature of (parameter1, 0=type, 1=class) parameter2, maximum distance parameter3, side parameter4 (-1=same, -2=any)
51=nearest creature of (parameter1, 0=type, 1=class) parameter2, maximum distance parameter3, side parameter4 (-1=same, -2=any) picks up this creature
52=active inventory=parameter1 (0 to 10)
53=continuously increase bar parameter3 by parameter1 for time parameter4 with creature visual effect from weapon parameter2, cap at maximum
54=make creature vanish for time parameter1 milliseconds