As soon as you can, max out grenadier and mercenary. Then start with a sniper, upgrade it fully, then buy 2 electros, and upgrade them. Then get a heat tower as soon as possible, and upgrade it. The game gets quite easy with maxed mercenary.
The only problem I have with this otherwise well-executed game is the fact that there are no damage zones. Hitting a penguin in the head does the same as shooting him in the foot.... but that's not enough to really detract from the game, so 5/5 anyway.
And also, (This isn't spam because of the different topics, just to pre-ent all the noobs who are gonna yell at me for this) what starscream did is a "double post" and while it is frowned upon in most online communities, it is not spam. It is simply using two posts to say what could have been included in one.
I'll say it again: Comments are for the game. Posting level codes is frowned upon as spamming, as it's irrelevant and not about the game. Don't do it again, nobody wants to see it.
I'm horribly disappointed in the RW accuracy of this game. First of all, the U.S.S Iowa wasn't an aircraft carrier. It's a battleship. Also, a dinosaur's brain would be too small for it to do any of the things it has to do in this game.
 "Red Moon"){kind=icon}
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 "Dinowaurs"){kind=icon}
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