0x00 Normal
0x01 Snow
0x02 Lava cave
0x03 Sandy cave
0x04 Plains
0x05 Dusk
0x06 Town
0x07 Night
0x08 Ship
0x09 Desert
0x0A Castle
0x0B Ruins
0x0C Shrine
0x0D Dread Isle
0x0E Night