The one change of rotating the map 90 degrees means that vertical rooms that are hard in vanilla are easy here, while some rooms that are easy become challenging affairs. I love some of the small details and changes that make this hack work, such as entering Maridia through what in vanilla is its exit. The rooms that gave me the most trouble were the metal pirates room and Draygon's room, which caused two of my very few deaths in this playthrough. Being good at walljumps and mid-air morphing is required to beat this game. Animals saved.