Ninja Kiwi, previously known as Kaiparasoft Ltd, is a mobile and online video game developer founded in Auckland, New Zealand, in 2006 by brothers Chris and Stephen Harris. Ninja Kiwi's first game was a browser based game called Cash Sprint, developed on the Adobe Flash Platform. Since then, they have produced more than 60 games across platforms including Adobe Flash, Android, iOS, PlayStation Portable, Nintendo DS, and more recently, Steam. Their most well-known titles are the Bloons and Bloons Tower Defense games. In 2012, Ninja Kiwi purchased Digital Goldfish, a Dundee, Scotland-based developer, for an undisclosed sum. Ninja Kiwi has a virtual currency known as NK Coins; purchases of games and in-game purchases can be transacted using NK Coins. About eighteen months before its dissolution by its parent company, Mochi Media (another major gaming website) discontinued its virtual currency (Mochi Coins) and replaced it with Ninja Kiwi's virtual currency. Ninja Kiwi was acquired by Modern Times Group on 24 March 2021. History Ninja Kiwi Games was founded by Chris and Stephen Harris in 2006. The decision to develop games was brought about by Stephen upon completion of a game design course at the Auckland Media Design School. He had previously graduated at the University of Auckland with a degree in geophysics. The first game that the brothers created was the now-defunct Cash Sprint, a browser-based game where players raced a ghost car and the player with the fastest time each week was rewarded a cash prize. However, they were unable to draw in advertisers to finance the project and were forced to scrap it after 14 weeks of operation. Next, they launched their own web portal that pooled to get developer, Digital Goldfish, who wanted to team up to release Bloons as an iPhone application, where it reached the number two position in the US app store. The relationship between Ninja Kiwi and Digital Goldfish continued long after this, with several members of the Digital Goldfish staff being completely devoted to the mobile development of Ninja Kiwi games. In 2012, Ninja Kiwi purchased Digital Goldfish. The previous titles that the two companies created together had racked up millions of downloads. Due to the already close relationship between the two companies, the merger was described by Digital Goldfish co-founder, Barry Petrie, as a "natural progressive step in the relationship between the two companies". Digital Goldfish was renamed Ninja Kiwi Europe. The