Having trouble ripping Sprites for a MUGEN character

I have been trying to use AnimGet to rip sprites for a MUGEN character I am trying to create of the character Lunar from Mischief Makers for the Nintendo 64 and it is not capturing all of my Project 64 window resulting in the program halting to a standstill as it is not capturing any of my pictures because it only sees one part of the screen. How do I fix this and is there a more efficient way of doing this? Please Help me.