Maybe the MAME emulation isn't as solid as that for the Megadrive (I know there's odd complaints that the Mega Play version jitters a bit more than the original). The same blurrier sprites seem to be evident on all screen formats too. I have to say it's a shame Time Attack is so limited, because trying to climb up the leaderboards is extremely addictive. I've managed to get up to rank 30. By the way did anyone notice the occasional Flicky art in the game intro? A hint to what may be in the works later?