I don't know if it's the monsters, the block backgrounds, the progression of parts, or maybe just the glowing blue doors, but this game reminds me more of Metroid than the Robot Wants series. Which is a good thing by the way, since Super Metroid is still my favorite game ever.
Also...I love how in every video game where you have a gun, you're so much more badass than your helpers. "You 50 guard that side, I'll take this pistol and guard this other side by myself." Lol
I really only have one gripe, (that isn't mentioned elsewhere) I seem to be suffering from sort of a lag build-up. I played for a few solid hours last night, and by the end, even smallish waves were lagging hard. I got ripped off from a couple general awards by the sluggish response. Today I noticed it ran so smoothly right out of the gate, and when it would start to lag real bad, I would refresh and things would be fine. I doubt it's just me, since I don't have problems with other, similar games.
I'm a little disappointed with myself that I had to use the upgrade glitch to get the hard badge...
That being said, Hypersonic Tack Shooters are actually too fast. If you upgrade them past the first Hypersonic step, they will shoot so fast that the bloons will not register, and therefore not pop.
You can continue to upgrade the range of towers, but they will not shoot any farther than they are animated to. The cannons seem to be an exception to this, but still have a limited range.
In short, be careful not to spend 6k on upgrades that don't do anything!
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