CHIMPS[fn 1] (short for No Continues, Hearts lost, Income, Monkey Knowledge, Powers or Selling) is a game mode in Bloons TD 6. In standard play, it is played on Hard difficulty, but uses rounds 6-100 like Impoppable. In singleplayer, it can only be played on a map after completing it on Impoppable.
No continues: Continues are disabled. Outside of Co-op, the option is replaced with "Retry Last Round", similar to the Challenge Editor.
No hearts lost: The player starts with one life and cannot gain any more, similar to Impoppable.
No income: All ways of earning cash besides starting cash, cash per pop, and end-of-round cash are disabled. Bloon Traps and Obyn Greenfoot's Wall of Trees do not multiply the amount of cash per pop.
Banana Farms are disabled. (They can be enabled through the Challenge Editor, but they serve no purpose since they can't generate cash.)
No Selling: Towers cannot be sold normally. If a tower is forcibly sold through other means, such as using a Support Chinook to relocate a supporting Arctic Wind or Lord of the Abyss, it returns $0. Note that sacrifices, such as Adora's Blood Sacrifice, are not considered selling.
