Neverending Upgrades

The next Bloons Tower Defense game will feature Neverending Upgrades. This means that, after the main upgrade paths are complete, you will be able to continue to upgrade towers' stats such as range, damage, and even health (they will increase slightly each time you purchase one of these upgrades, and their cost will go up slightly as well). However, the towers will still keep the same abilities and attacks they already have.