Super Mario Bros! Classic feel, brand new levels. :D I changed graphics to Halloween style. and music , @will_wam recreated the original levels by Nintendo, but why not modify some of his own?
O to skip a level. P to go back a level. Credits: All credit goes to @Will_wam for making the original (but not Halloween edition) Nintendo for lots of art, music, sound effects, ideas, etc. bobby pickette for making monster mash but 8-bit universe for pixelating it