They cannot be upgraded, so the only way to increase your Bloontonium capacity further is to build another one. These buildings do not appear in the mobile version, as they are replaced by one single 2x2 building called the Bloon Inflation Factory.
Identifier (URI) | Rank |
---|---|
dbkwik:resource/U3f6kwF2mlw-25MlFELxBg== | 5.88129e-14 |