Mario goes puzzle platformer! A hack which requires tricky jumps but not totally glitch abusing skills to pass. You have to figure out the sequence of the rooms, rescue the princess and find all 9 floors. This hack is based on a project started by w7n. The abandoned hack featured 3 levels and the finished hack features new graphics, altered game mechanics, different music and a total of 25 levels. HINT: Sometimes you might need to take a hit. It’s not always good to be big. Some softlock bugfixes NEW IN VERSION 1.3 (RECOMMENDED!) New graphics! Lot’s of bugfix Automated scrolling on floor 7 Booklet: https://www.dropbox.com/scl/fi/eeeaih0ogqiiz3qe36ad5/Mario-s-Keep-Co-Op-MANUAL.pdf?rlkey=1dabvi9wb38nihm2azwc0uhya&st=o6b2g2ai&dl=1 (This hack was originally released May 09, 2019)

w7n: Original hacking Nesdraug: Hacking