MochiCoins used to be a form of currency used by MochiGames and Ninja Kiwi that you could purchase with real-world money or you earn by completing offers. They were used to buy premium content. They had been used in Bloons TD 4, Bloons TD 4 Expansion, and Bloons 2. Purchasing MochiCoins is no longer possible as they have been discontinued as of October 5th, 2012.
- Bloons 2 has not updated to allow the use of NK Coins; it still shows that it requires MochiCoins to purchase Premium Upgrades. Thus, premium upgrades cannot be bought in Bloons 2.
- Ninja Kiwi does not plan to fix this issue in that game.