Fix for Piranhas retaining short sprites
Fix for Piranhas retaining short sprites

Fixes #286.

ajrulez/FullScreenMario-1,andrewerb/FullScreenMario,ogregoire/FullScreenMario,vaikan/FullScreenMario-JSON,ogregoire/FullScreenMario,chensj1901/FullScreenMario,chensj1901/FullScreenMario,bx5974/FullScreenMario,shuidong/FullScreenMario,ajrulez/FullScreenMario-1,rmallols/FullScreenMario,daivee/FullScreenMario,eross/FullScreenMario,ogregoire/FullScreenMario,vaikan/FullScreenMario-JSON,rmallols/FullScreenMario,eross/FullScreenMario,bx5974/FullScreenMario,rmallols/FullScreenMario,andrewerb/FullScreenMario,vaikan/FullScreenMario-JSON,ajrulez/FullScreenMario-1,bx5974/FullScreenMario,shuidong/FullScreenMario,andrewerb/FullScreenMario,shuidong/FullScreenMario,daivee/FullScreenMario,daivee/FullScreenMario,chensj1901/FullScreenMario,eross/FullScreenMario