But i still have an "old" bug in A.K.: The Sound/game hangs sometimes for miliseconds
And in SMS Sonic 1 the screen-Aspect-ratio seems a little bit wrong (have a thick black vertical line on the left side of the Master-System-Screen, in AlexKidd (the Game!) not )
Uhm, Alex Kidd doesn't hang for me (I've finished that game several times
), it only hangs a second a bit seconds after launched, as the other games.
By the way, I think the vertical black line you say it's normal. It is used to hide "corrupt" data that it is not seen on a TV because of the marquee used, but the GP2X shows all the screen and would show that corrupt data if it wasn't hided.