the game has problems with slowdown, just as when you are in boss fights you are going to see it lags, which is normal, i mean even the original mmx on snes had lag prollems..
your ms should blink all throught the game as its playing off the stick and not the umd.. its normal.. the ms light blinks when ever its being used.. just don't remove it while its blinking and you're ok bud
dude i have a umd game so i never bothered gettin device hook, so i wouldnt kno what games work with it.. i googled a list for it but i only checked like the first 5 results and i came up no list so idk.. use umdemulator, get yourself a cheap used old psp game and you are good to go..device hook cant play all games as i am sure you are finding out now anyway