Quantity Digits to Accompany Level Modifier Code
00 - Gravel Factory
01 - Quarry
02 - Flooded Quarry
03 - Tar Pits
04 - Bonus Level: The Rubbles Backyard Pool
05 - Bedrock Freeway
06 - Crystal Mine
07 - Lava
08 - Rockzilla
09 - Bonus Lane: Water Buffalo Lodge
0A - Zetox
0B - Hidden Lane: Gazoo's Asteroid