It is unknown how long bugs have been using these specific types of berries as currency, but it is a very effective method. Hard, long lasting and very bitter, these berries are almost never eaten for their horrible taste. Their small size is perfect for carrying them around, too! There have been recorded cases of some bugs actually enjoying eating these berries, but almost no one can stomach their taste.
—Ant Kingdom Lore Book, Bug Fables
"That'll be 48 beta-carotene globules. I'll just tap into your account..."
—Cashier, Humans-B-Gone!
Cuphead: (Hands over a giant coin) Don't worry, folks! It's on me tonight!
Chester: Sorry whimsical talking flask, but a coin ain't enough.
Madeline: (Holding Canadian dollar notes) I... think I can pay for that? Although it's very overpriced, don't you think?
Chester: What is this? Some kind of circus invitation?
Ghost: (Presents chests full of Geos)
Chester: I don't deal in metal scraps, sorry little buddy.
Chester: Sorry whimsical talking flask, but a coin ain't enough.
Madeline: (Holding Canadian dollar notes) I... think I can pay for that? Although it's very overpriced, don't you think?
Chester: What is this? Some kind of circus invitation?
Ghost: (Presents chests full of Geos)
Chester: I don't deal in metal scraps, sorry little buddy.
— Indie Cross - Episode 2