Haven't seen this before, I'll give it that. But its repetitive. Also, you lose often from 3 bubbles that come on the screen and are immediately in position for you to lose. That means that luck plays too high a role.
hahool... It doesn't have to be in one game, or even unspent. So yeah, its easy.
As for the game in general, its gotten a LOT harder since the new version came out. Less options on how to win. Its still an ok game, but its not impressive.
 "Escape the room 2"){kind=icon}
 "Escape the Room 1"){kind=icon}
 "The Imperium"){kind=icon}
 "click n' win"){kind=icon}
 "Bloons Tower Defense 3"){kind=icon}
 "The Equator"){kind=icon}
 "Sift Heads 4"){kind=icon}
 "Marble Lines"){kind=icon}
 "Mr Wiggles 2"){kind=icon}
 "Air Battle"){kind=icon}
 "Boris in the country"){kind=icon}
 "BubblePop!"){kind=icon}
 "Army Copter"){kind=icon}
 "Lord Of War"){kind=icon}
 "Doof Ball"){kind=icon}
 "Campaign Game: General Election"){kind=icon}
 "The Necronomicon"){kind=icon}
 "New User Tutorial 2: Reclaiming the P0wn"){kind=icon}