Mario Goes Puzzle Platformer. Can You Figure It Out?Mario's Keep is a clever NES ROM hack that trades straightforward platforming for a puzzle-driven challenge — you'll need to figure out the sequence of rooms, rescue the princess, and find all 9 floors. Tricky jumps required, but no glitch-abusing skills needed. Puzzle platformer ROM hack based on a project by w7n 25 levels with new graphics, altered game mechanics, and different music Rescue the princess and find all 9 floors Compatible with original NES (toaster & top loader), Retron HD, Retron 1/2/3, Retro Trio, Retro Bit, and other quality hardware clones ⚠️ Not compatible with Mattel NES, Retron 5, or Retro Freak (Android emulators) Ships from the US A unique take on the Mario formula that rewards patience and problem-solving. If you've played through the classics and want something that makes you think, Mario's Keep delivers.
