Black Market

The Black Market is another special feature shop that can be opened by clicking a tree in the top-right corner of the main screen (the screen where the Special Agents' Hut and the Towers' Fountain are), of course, to actually know where it is without seeing this page, is by looking carefully to that tree, a monkey in black is behind it. However, you can only access it if you are logged in to NinjaKiwi. These abilities are permanent, which means once bought, they will be yours forever.

This shop contains ABILITIES! Yes, with this, you can buy abilities, however, they must be unlocked first. Here is the list of abilities (you can add more!):

Screen Shot
The screen is shot and flashes, dealing 16 HP damage to every tower and 2800 damage to every bloon on the screen. This cannot be evaded and costs 630 MM to unlock after you: It has a cooldown time of 3 minutes. Its image is a camera taking a photo.
 * Use Ground Zero 13 times in a single game.
 * Use Bloon Annihilation 10 times in a single game.
 * Use MOAB Annihilation 26 times in a single game.

Spiral Knights
All Monkey Paladins on the screen will start spinning and walking in random places on the screen, dealing 90 damage to every bloon that they hit in a 98px range. During this time, the Paladins cannot evade any attack, but reflect them. Buy it with 570 MM to unlock it after you: Its image is a Monkey Paladin spinning.
 * Buy 90 Monkey Paladins.
 * Buy 30 4/X Monkey Paladins.
 * Buy 30 X/4 Monkey Paladins.

Wraith Storm
Lots of wraiths come from the left side of the screen to the right side, dealing 1900 damage but also with a 20% chance to inflict a secondary effect (burning, shocking, freezing, brainwashing or stunning them.). This also affects towers, dealing 10 HP damage to them. Do what is said below and you can buy this for 675 MM: This ability's cooldown time is 170 seconds. The image is a dark ghost with blue eyes.
 * Burn 440 bloons.
 * Shock 600 bloons (note that the Monkey Apprentice's Magic Bolt shocks bloons).
 * Freeze 580 bloons.
 * Brainwash 230 bloons.
 * Stun 610 bloons.