I've a problem with BTX.
Even when I put an edited .narc file on my rom (and I've erased the .narc mention when I put it on PPRE), the sprite appears as a TV snow when walking to the left or downwards.
I've made an attempt by using sprites of the game, and the problem is still the same.
Here is a picture which shows what happens.
So, if somebody knows why this is happening!