Perhaps it is only me, but a combination of chrome and flash have rendered this game unplayable.
The pac man wakka wakka constantly plays at full volume and none of the mouse clicks in the level select screen do anything.
Still, this is quite a unique gaming experience. 5/5
Having come to a crashing halt at mission 15 due to a lack of energy, I have done a bit of math and assuming energy cost averages out at 14 (it probably doesn't) and there are 4 fights average per mission, that makes playing 66 missions cost: 14*4*66 or 3696 energy, which at 1 energy per minute makes the hard badge a whopping 61.6 hours of gameplay (or waiting).
Poor show, lets hope kong is getting paid for this and supporting other, (better,) games.
I like it, but just a game seems like a dubious disclaimer.
Anyone who enjoyed reading into the mechanics may enjoy Love the game, also on this website.
Personally, I enjoyed Nerds typical style of character design, pretty, simple, elegant.
 "One Chance"){kind=icon}
 "Freedom Bridge"){kind=icon}
 "Tyrant"){kind=icon}
 "Upgrade Complete 2"){kind=icon}
 "Neverending Light"){kind=icon}
 "Picma Squared"){kind=icon}
 "Road of the Dead"){kind=icon}
 "Orbital Onslaught"){kind=icon}
 "Balloon in a Wasteland"){kind=icon}
 "More Bloons"){kind=icon}
 "Apokalyx"){kind=icon}
 "Guy of My Dreams"){kind=icon}
 "Refraction"){kind=icon}