Worlds 1, 2 and 3

Custom Levels in World 1:
W1-1: Simple Fields
W1-2: Ultraviolet Light
W1-3: Vertical Plains
W1-F: Fantasy Underwater Fortress by insectduel
W1-4: Showcase 51-3
Boss: Iggy Koopa

Custom Levels in World 2:
W2-1: Goomba Desert
W2-2: Showcase 58-3
W2-F: World 1-4 from Super Mario Bros.
W2-3: Orange Outskirts
W2-4: Custom Hilly
Boss: Roy Koopa

Custom Levels in World 3:
W3-1: Hybrid Hills
W3-2: World 2-3 from Super Mario Bros. (music disabled due to a glitch)
W3-3: Icy Retreat
W3-4: Underwater Sun
Boss: Wendy O. Koopa