Easy CP
When you are at Hope's home towards the end of Chapter 7, you will encounter an attack from groups of three PSICOM enemies. There is a save point, and a group of enemies to the left and right side of you. Defeat one set of enemies, and then fight the next set. Once you have defeated all of them, run around the room to the other side, and the enemies will respawn. You can repeat this as many times as desired and complete a battle each time in under one minute by simply using the Relentless Assault and Diversity combinations. After each battle, you will get 160 CP, as well as an item occasionally from the spoil that remains. This trick allows you to easily gain enough CP to use later on if you have already maxed out your current level, or you can max out your current level in the Crystalium system.
When you first arrive in Gran Pulse, you will be told to go to Vanille's village. On the way to the village you must go through Taejin Tower. Do the following steps there to get easy CP:
1. Defeat the Boss at the apex of Taejin Tower.
2. Take the elevator down to level four, and then the other elevator (the first room on the left when exiting the elevator) up to level five.
3. You will see a mission statue directly in front of the elevator (Mission 24)
4. Select the statue, and re-accept the mission. The target will spawn in the same room.
5. Kill the group of three that spawn to get 6,000 CP and an item that sells for 6,000 Gil.
6. Go back to the statue, re-accept the mission again, and complete it. Repeat these steps as many times as desired.
You can use the following tactic to kill them in approximately 34 seconds with tier two weapons. Have your party consist of Snow, Vanille (use her tier two Marlboros Wand), and Lightning. Tactics: Default - Ravager, Ravager, Ravager - Other - Commando, Saboteur, Commando. Start with the default Ravager x3 on the main target (in the middle; should be auto targeted) until he is staggering. Then, switch to your other tactic, and keep auto-attacking the same enemy. With help from Vanille (saboteur), he will die in a few combos while your other commando is already killing one of the side enemies. Keep attacking until he is dead. To make this easier, have the auto-haste "Sprint Shoes" gear equipped.
During the assault on the Estheim house, run around the circular hallway instead of taking the red circle out of the room. The soldiers are easy to defeat, and you can get anywhere from 120 to 200 CP per battle, as well as an incentive chip that you can sell if desired. An easy way to do this is to attack the soldiers at the window, and instead of turning around and going straight for the soldiers behind you, go around the hall and attack. Once you make it back, the soldiers at the window will have respawned.
When you enter the hall while on the Palamecia and the alarms go off (there is a safe point against the wall), defeat all the enemies. Instead of following the right turn, keep going. You will eventually end up back at the entrance to the ship. Kill all the enemies located there, then turn back. The enemies in the hall will have respawned. Most battles will get you at least two Credit Chips or one Incentive Chip, and a good amount of CP. Repeat this as many times as desired.
Use the following trick to get 6,600 CP in approximately two minutes. There are two Behemoth-like enemies fighting each other at Gran Pulse. Once you encounter them, a preemptive attack will always happen. Use the following Optima set-up: Attacker/Enhancer/Enhancer. Wait until you get Haste and Fire elemental offense. Then, switch to Attacker/Blaster/Blaster. Kill the purple creature to make the white one easier to defeat. Go back near the save point to have them respawn.
Extra ATB
Set up two of the same Paradigms, and have them close to each other in the top of the menu. You do not have to use the same ones, but do so if it is the best attack. You might want to try this with your battle speed set to slow until you get used to the process. During turn 1, let your ATB charge. For example, if you have four attacks, during the third attack display the "Paradigm" menu, and highlight the next Paradigm. Once you see your fourth attack on screen or guess the timing for turn 2, use the extra ATB. After using this extra ATB during turn 3, charge your ATB so you can use it again. You must charge a turn to get an extra ATB. However, you cannot use an extra ATB to get another extra one. Note: You can just charge the ATB half way to get an extra one. For example:
Turn 1: Attack, then switch Paradigm at end of attack.
Turn 2: Extra ATB attacks.
Turn 3: Repeat turn 1.
Sprint Shoes accessory
You can either find the Sprint Shoes or make them. One of the methods to making them is using a Tetradic Tiara. Follow the order below exactly. This method works best if you have the accessory that makes you more likely to get a drop after a battle. Make sure you upgrade it to the top tier as well.
1. Buy Four Iron-Bangles (500 Gil each)
2. Make sure there are no Tetradic Tiaras in your inventory.
3. Keep doing Mission 7 (Disc 3, Gran Pulse) until you get a Tetradic Tiara (rare drop).
4. Save the game.
5. Break down all four Iron-Bangles.
6. Upgrade Tetradic Tiara level 1 to Tetradic Tiara ? (only one level until star).
7. Break down Tetra Tiara ?.
8. Repeat these steps as many times as desired.
The result should be one raw material that sells for 12,500 Gil, three Talisman, and one pair of Sprint Shoes. The same process works if you get the Tetradic Crown drop instead of the Tiara; however, instead of breaking down four Iron-Bangles, just break down three. Also, instead of getting the Sprint Shoes, you will get Herme's Shoes. If you upgrade this to the star level (just one level), then upgrade it with the correct crystal/stone/etc., it will turn into the Sprint Shoes. Alternately, you can upgrade the Tetradic Crown to star level, then using the correct stone/crystal (Mnir Stone or something similar), you can turn it into Tetradic Tiara, and then perform the process above.
Changing options before Boss b...