I found this to be a very addictive game.
Graphics were simple, needless to say, very clean and sharp. I experienced no lag whatsoever, at no point during the game.
Thoroughly enjoyable, but I think that the levelling system went by too quickly, I was at the max level within minutes, and I would gain 20 swimming levels each run I had, and I'd fly and fly, gaining 10 levels or more if I didn't even touch the controls.
Very good game, but too easy. 3.5/5.
I will say that this is very similar to a rubik's cube, despite this, the game is somewhat complicated to me. I will give you a 4/5 for graphics, 3/5 for sound, and 2/5 for originality, for a total of 9/15, or 3/5.
If you seriously need to farm meso, get 1m cash and then grind it back off of the Yabber Doo. I get 2m meso +2x drops and 4x meso/exp. That's a 16x boost at level 181.
I need about half a billion exp or more to level up now, it's ridiculous.
It takes 7-8 minutes to level even with a twin coupon and Duku as the enemy I'm facing. I have 11.5 billion meso.
If I'm playing New Game Plus mode, I hate to have to use weak human troops, so I grind off infinite waves. It's cheap but it helps a lot. Don't know about anyone else though.