Stage themes

HEY PLEASE READ https://pastebin.com/WAJ9vHWa IT'S LIKE THIS ONE BUT HAS MORE STUFF

0x204e48 in mkb2.main_loop.rel is the list of stage themes starting at 000 working its way up to 420

Important numbers:

13 = Jungle 2
11 = Lava
12 = Water 2
20 = Whale
14 = Park
15 = Pot
19 = Bubbly
18 = Gear
16 = Space 2
17 = Electric
1A = Bonus 2