Who Wants To Be A Bloonionaire?,[fn 1] abbreviated as WWTBAB or simply Bloonionaire, was an Adobe Flash trivia adver-game developed by Ninja Kiwi as part of a promotional campaign for the then-upcoming Bloons TD 5. The objective of the game was to answer 10 multiple-choice trivia questions about the Bloons TD series in a row without submitting any incorrect answers, with the reward for completing the game being a trailer for BTD5. The game's name and gameplay were a parody of the television game show Who Wants to Be a Millionaire?.
In early 2012, the game was removed from Ninja Kiwi's website, though the game files still exist on their servers. It is one of the few Bloons Flash games that was not included in the Ninja Kiwi Archive.
Who Wants To Be A Bloonionaire? is split into ten rounds, each with one question with one correct answer and three incorrect answers. Selecting the correct answer progresses to the next round, but selecting an incorrect answer ends the game and returns it to the title screen. There are 39 possible questions in total, split across four categories of difficulty (internally referred to as "easy", "medium", "hard", and "final"), from which the questions are chosen at random. Questions 1–4 are from the "easy" set, 5–7 are "medium", 8–9 are "hard", and question 10 is from the "final" set.
The player has two lifelines to make answering a question easier. Each can only be used on a single question per game, and they can both be used on the same question.
50:50: removes two random incorrect answers.
Ask the Monkeys: Displays random percentages for each question. The correct answer always has at least 60%.
Who Wants To Be A Bloonionaire?! Test your knowledge of Bloons TD 1, 2, 3 and 4. There's a little help to get you through, use your 50:50 and 'Ask the Monkeys' wisely! Win the game to unlock a super secret surprise!