Bloons TD 5

This guide by My Runners High will get this achievement.

Track: "3 times around"
Game Mode: Apocalypse mode
Additional upgrades: "Double Money" purchased with $7,500 monkey money
***If unable to purchase "Double Money" the achievement is still easy to obtain***

***The achievement will not pop until you lose all your lives and go back to the main menu***

He starts the map buy purchasing a ninja monkey and letting a couple rounds go by. If you place the ninja monkey on the corners, outside the circle in the middle, they will be able to hit the bloons as they go around the map multiple times. Once you have a couple ninja monkey's for support save up enough for a glue gunner and put him near the beginning of the map. Make sure to upgrade the glue gunner to shoot "corrosive" shots so that when the lead bloons come they will be able to pop those. As the map continues just keep building towers as you gain cash. I suggest that you leave the small circle in the middle of the map open to place super monkey's. This mode can generate lots of cash, but if you feel like you need more place some banana farms on the sides of the map. By the time round 50 starts there should only be MOABs, BFBs and ZOMGs that come on the map. Once this starts make sure you either have lots of super monkeys or powerful towers that can destroy blimps really fast. The blimps get progressively faster as the rounds increase. I will add a small video of what my game was like while I was playing this game mode and setup.