1) All i know is that they began to rise against shinra?
2) You can buy it at the "battle square" for 40,000 ithink... but answer is battle square,
3) Because he caught mako energy...? i duno, i cant remember exactly what happend (wow i need to go threw the game again!)
4) Choco Mog, but it is possible to miss... But Choco mog still counts as the first...
5) Sector 7?