Board Thread:Off-Topic/@comment-2600:8801:A400:8760:A0F1:168D:C360:219C-20180920024331/@comment-25404524-20180921050509

Depends what game. In BTD5, that is easy: the Glue Gunner. In BTD6, that is a tougher one. Probably Ice Monkey, though only one of the upgrades is extremely useful compared to the very subpar other upgrades.