Small Bloon Option

"You have it set to M for mini, when it should be W for wumbo"

- "Alcheristman and Bloonacleboy" BTD6 achievement description

Small Bloon Option is a setting that was added in Version 12.0. It is unlocked a secret achievement called "Alchermistman and Bloonacleboy". This can be revealed when a game is completed with 1,000,000+ damage from Bloon Master Alchemist in a single game. Similarly to Big Bloon Option, the effect is purely visual, and it can be enabled on CHIMPS Mode. Enabling both options will simply cancel each other's effects out.

Trivia

 * Both the achievement's name and the description are references to the TV Show SpongeBob SquarePants. Specifically, the former is a reference to Mermaid Man and Barnacle Boy, while the latter is a reference to a quote in Mermaid Man and Barnacle Boy IV.