 0: Grassland (orange hills and clouds)
 1: Castle
 2: Desert (blue sky, pyramids)
 3: Underground
 4: Clouds
 5: Underwater
 6: Desert (yellow sky, pyramids)
 7: Volcanoes
 8: Grassland (pastel hills and clouds)
 9: Background clouds
10: Background mountains
11: Forest
12: Grassland (green/white hills and clouds)
13: Background clouds 2
14: Background clouds 2
15: Volcanoes 2
16: Volcanoes 3
17: Snowy trees
18: Snowy hills
19: Background clouds
20: Desert (blue sky, pyramids, higher)
21: Unused bonus room (NES Mario and Luigi)
22: Volcanoes 3
23: Ghost house
24: Background mountains
25: Background mountains
26: Purple sky
27: Grassland (orange hills and clouds)
28: Snowy hills
29: Pipes
30: Empty
31: Volcano tower
32: Castle 2
33: Clouds with orange hills at back
34: Snowy hills
35: Cave
36: Unknown
37: Purple sky with clouds
38: Purple sky with clouds 2
39: Tower
40: Ghost house exit
41: Castle
42: Toad house 1
43: Toad house 2
44: Toad house 3
45: Castle
46: Toad house 4
47: Bowser Jr battle
48: Background clouds (tall)
49: Boss battle
50: Background clouds
51: Background clouds
52: Desert (blue sky, pyramids)
53: Desert (yellow sky, higher)
54: Background mountains
55: Final boss battle
56: Volcanoes 2
57: Underwater cave
58: Light grey castle (W8 castle 1)
59: Yellow clouds??
60: Big mountains (higher)
61: Background clouds
62: Background mountains
63: Mummy-Pokey battle
64: Desert (yellow sky, pyramids)
65: Desert (pyramids)
66: Desert (blue sky, pyramids, higher)
67: Unused bonus (NES sprites)
68: Unused bonus (NES Mario + Bowser)
69: Unused bonus (NES M/L swimming)
70: Unused bonus (NES M/L)
71: Unused bonus (NES Mario on vine)
72: Unused bonus (NES Marios)
73: Underground cave (red)
74: Bonus room
75: Grassland (orange hills and clouds)
255: None
