Final Fantasy XIII-2

Besides Lightning alive and walking around what looked like A Dying World 700AF,

what about everyone else? if lightning killed caius, what happens to noel, does his kill not count? didnt feel like an ending to the game, just a specific part of the game. was more of a wtf to me. I could think of more, but those are main key points to me.

Here is the monsters list for infusion:
Mud Frog Lv19 - Ravager - The Archylte Steppe rainy (??? AF)
Caterchipillar Lv33 - Medic - The Archylte Steppe rainy (??? AF)
Tonberry Lv22- Commando - Bresha Ruins (300 AF)
Mewmao Lv23 - Synergist - The Archylte Steppe rainy (??? AF)
Necrosis Lv72 - Saboteur - Yaschas Massif (01X AF)
Pulsework Soldier Lv40 x 2, Lv19 x 1 - Sentinel - New Bodhum (003 AF)
Green Chocobo Lv48 - Medic - Yaschas Massif (100 AF; 110 AF)*2
Swampmonk Lv39 - Ravager - The Archylte Steppe rainy (??? AF)

How to build:
Step 1
Level up PuPu with Mana items to level 10. Use potent items from 10 to 13.

Step 2
1) Mud frog Lv19 ← Caterchipillar Lv33 (Magic: +20%, Resist Elements: +30%)
2) Mud frog Lv19 ← Tonberry Lv22 (Magic: +35% yellow)
3) Mud frog Lv19 ← Mewmao Lv23 (HP+25%, Resist Magic: +36%) 　
4) Mud frog Lv19 ← Necrosis Lv72 (Resilience: +40% white, HP+30% yellow)

Your Mud frog should have the abilities as follow:
5 original abilities in red lock
HP+30% yellow
Magic: +35% yellow
Resist Elements: +30%
Resilience: +40%
Resist Magic: +36%

Step 3
1) PuPu ← Pulsework Soldier Lv40 x 2, Lv19 x 1 (HP+16%, Resist Physical: +15%, Curaja)*3
2) PuPu ← Green Chocobo Lv48 (Resist Physical: +36% yellow)

*3
Infuse any sentinel monsters with Lv99 in total to PuPu for the hidden ability 'Curaja', I chose Pulsework Soldier here because it's easy to capture. But you could use Major Moblin Lv29, Pulsework Knight Lv20, Navidon Lv40 instead.

Step 4:
1) PuPu ← Mud frog Lv19
You should have abilities as follow right now:
Original ability with red lock 1
Original ability with red lock 2
HP+30% in yellow lock
Magic: +35% in yellow lock
Resist Physical: +36% in yellow lock
Resist Elements: +30%
Resilience: +40%
Resist Magic: +36%
Improved Raise II

For the last space, I put Critical: Shield II (Swampmonk Lv39), but you could choose the abilities below instead:
Critical: Tetadefense: (Pulsework Gladiator Lv23)
Rapid Recovery: Microchu Lv24

Done~!

Etro is dead; time is still destroyed; Serah is still held captive by Yeul; Lightning is crystallized until her moment of awakening--whatever that may be.

why Lightning crystallized herself