1: You only earn Qi and TC in official games.
This includes:
-Tourneys
-Quick aikido rooms
-Rooms with a coloured name
This excludes:
-User made rooms
2: When you enter a duel room, you'll get a message.
like:
"750tc duel room"
[Or something like that, I never duel]
The owner of the room sets this value.
When you enter this room, you'll be in spectator mode.
From the moment you enter [= /enter]
You'll pay 750 tc's.
The owner has paid 750tc's as well.
The winner of the duel wins the Both his own 750 and the opponent's 750tc's.