well i did not hack so i don't kno much about it (
)
my best knowledge to tell you is
new games supported like
king of fighters 94-2002
metal slug 1-5 and x
snk vs chaos
usually most popular games came out in 2003
and main point for this emulator is very stable and (won't desync)
i know in china ppls use kawaks for online games
but i am in new york now and everyone use mame 0.64 hack
why don you have a try with you and ur friends and tell what you think about it