Here are all of the bloon changes for mastery mode, (if it ever gets added)
Red => Blue
Blue => Green
Green => Yellow
Yellow => Pink
Pink => Black
Purple => 2 Purples
Black => Lead
White => Zebra
Lead => F. Lead
F. Lead => 2 F. Lead
Zebra => Rainbow
Rainbow => Ceram
Ceram => F. Ceram
F. Ceram => MOAB
MOAB => F. MOAB
F. MOAB => BFB
BFB => F. BFB
F. BFB => ZOMG
ZOMG => F. ZOMG
F. ZOMG => BAD
DDT => F. DDT
F. DDT => 2 F. DDT
BAD = F. BAD
F. BAD => 2 F. BAD
Unlocked after graing all medals of a difficulty, on begginer, get all easy difficulty on every map, on mastery mode, you must redo all modes in order, (Ej: Complete ABR mastery mode to unlock Impoppable mastery)
Hope you like it! :)