Your Analog stick will move your character, the D-Pad will navigate menus, and if you tap the L trigger the camera will snap right behind your character. HP stands for Health Points and it determines how much damage a character can take before they die. TP stands for Technique Points. Each Technique uses up a certain amount of TP depending on your magic skill. Once your TP is depleted, you are unable to cast any more Techniques.
Every character comes into the game world with a small little bulb floating above their shoulder.
This little thing is your MAG, and it will be your constant companion throughout the adventure. Think of the MAG as your own personal magical protector. Once the MAG evolves once, it will gain the ability to perform a Photon Blast. Each type of MAG has different proton blasts, and you are able to get more as the MAG evolves. If you keep the synch and IQ high, chances are that you will see your MAG evolve once its levels have been increased.