I had to look through EVERY extension in AmpMod for this list
Box2D Physics
Video
Pen Plus V7
Simple 3D
Legacy List Tools
Temporary Variables
active thread variables
active runtime variables
More Timers
CloudLink V4
I’m too lazy to check how this one works and check which ones return multiple values
Asset Manager
all sprites
all costumes
all sounds
loaded extensions
Font Manager
all custom fonts
() fonts
XML
Zip
rxFS
Dictionaries
Longman Dictionary
all definitions of () in the longman dictionary