Board Thread:Questions and Answers/@comment-31881699-20170624081256

On some pages' trivia it says How is this correct with sub, farm, and ace? 
 * In BTD5, tier 3 and 4 of Path 1 upgrades is ancient-themed, while the Path 2 upgrades is future-themed, which is a pattern repeated with the Super Monkey, Ninja Monkey and Boomerang Thrower and loosely with the Sub, Dart Monkey, Banana Farm, Monkey Ace, and Village, but reversed with the Buccaneer.