Memory Hacking Software

this is chinese game,about playing basketball, I try to hack those abilities(spped,3 point accuracy.....)
www.fsonline.com.tw

what search should I use?
How do i know the hack work?<<Because I can change the value visually,i don't know that it is work or not.

I hope someone can suggest some method to me to hack this game.

most of the time, it would be "unsigned long". Activation/characters would usually be "byte"