The following list was extracted from VOCAB.999 using SCI Studio 3:
Load
UnLoad
ScriptID
DisposeScript
Clone
DisposeClone
IsObject
RespondsTo
DrawPic
Show
PicNotValid
Animate
SetNowSeen
NumLoops
NumCels
CelWide
CelHigh
DrawCel
AddToPic
NewWindow
GetPort
SetPort
DisposeWindow
DrawControl
HiliteControl
EditControl
TextSize
Display
GetEvent
GlobalToLocal
LocalToGlobal
MapKeyToDir
DrawMenuBar
MenuSelect
AddMenu
DrawStatus
Parse
Said
SetSynonyms
HaveMouse
SetCursor
FOpen
FPuts
FGets
FClose
SaveGame
RestoreGame
RestartGame
GameIsRestarting
DoSound
NewList
DisposeList
NewNode
FirstNode
LastNode
EmptyList
NextNode
PrevNode
NodeValue
AddAfter
AddToFront
AddToEnd
FindKey
DeleteKey
Random
Abs
Sqrt
GetAngle
GetDistance
Wait
GetTime
StrEnd
StrCat
StrCmp
StrLen
StrCpy
Format
GetFarText
ReadNumber
BaseSetter
DirLoop
CanBeHere
OnControl
InitBresen
DoBresen
DoAvoider
SetJump
SetDebug
InspectObj
ShowSends
ShowObjs
ShowFree
MemoryInfo
StackUsage
Profiler
GetMenu
SetMenu
GetSaveFiles
GetCWD
CheckFreeSpace
ValidPath
CoordPri
StrAt
DeviceInfo
GetSaveDir
CheckSaveGame
ShakeScreen
FlushResources
SinMult
CosMult
SinDiv
CosDiv
Graph