Fix for killKoopa not respecting direction
Fix for killKoopa not respecting direction

Fixes #103.

shuidong/FullScreenMario,ogregoire/FullScreenMario,eross/FullScreenMario,bx5974/FullScreenMario,ajrulez/FullScreenMario-1,sushilkumaraitian/FullScreenMario,janson123/FullScreenMario,vaikan/FullScreenMario-JSON,chensj1901/FullScreenMario,janson123/FullScreenMario,vaikan/FullScreenMario-JSON,bx5974/FullScreenMario,daivee/FullScreenMario,bx5974/FullScreenMario,daivee/FullScreenMario,rmallols/FullScreenMario,andrewerb/FullScreenMario,rmallols/FullScreenMario,sushilkumaraitian/FullScreenMario,ajrulez/FullScreenMario-1,chensj1901/FullScreenMario,shuidong/FullScreenMario,andrewerb/FullScreenMario,shuidong/FullScreenMario,andrewerb/FullScreenMario,daivee/FullScreenMario,ajrulez/FullScreenMario-1,janson123/FullScreenMario,sushilkumaraitian/FullScreenMario,ogregoire/FullScreenMario,rmallols/FullScreenMario,eross/FullScreenMario,vaikan/FullScreenMario-JSON,chensj1901/FullScreenMario,ogregoire/FullScreenMario,eross/FullScreenMario