Koopa-Kola

Koopa-Kola is a recurring product in the Nintendo Comics System Mario comics. According to a quote by Bowser, it comes in both plain and crunchy variety and is "made from REAL coal."

Additionally, Koopa-Kola is shown in The Super Mario Bros. Super Show! episode "Karate Koopa," where it is drunk by Karate Koopa and his minions at a short celebration party. However, it receives little more than a brief mention and is only seen very briefly.

Koopa-Kola is mentioned a few times in Nintendo Adventure Books. It is featured prominently in Unjust Desserts where a shrunken Mario finds a virtual lake of the stuff inside Yoshi's stomach. If he tries to swim across, the Koopa-Kola congeals into sticky crystals all over him.

Trivia

 * Koopa-Kola is likely based upon Coca-Cola. This is supported by the fact the advertisement (right) says it's Koopa-Kola Classik, making it distinct from an (implied) New Koopa-Kola as Coca-Cola Classic was distinguished from New Coke.