Any text that is proceeded by *comment will not appear in the game. This command is primarily for leaving a note to yourself, such as a reminder as to why you did something a certain way.
Anything preceded by *comment is also ignored by randomtest and quicktest, and so it is also useful if you're trying to test your game but a bit of code is causing a game stopping error and you don't know why, you can simply comment out the bit of code and come back to it.
*choice *if ((has_sword) and (has_shield)) #Block and counter thrust *comment you can only block and counter-thrust if you have BOTH a sword and shield. *goto block_and_thrust *if (has_sword) #Thrust *goto thrust *if (has_shield) #Block *goto blockLooking for a little more detail? Try the wiki page