Final Fantasy XIII - Technical Points
You can learn a variety of Techniques that Use Technical Points (TP) to
use. These can be used as long as there are TP left and are independent of
roles. Which means that once you learned them, you can use them in any role.
The TP Gauge does not refill itself automatically like the ATB Gauge and
neither does it replenish completely after battle. To regain TP you will
have to attack enemies by chaining attacks or by getting a high score at
the end of the battle. The higher the score, the more TP you regain.
TP can also be restored by using items.