@joncantwell LOL,I think you're a bit too obsessed with jet packs but...good game.And I think Jetpack Jack has a higher rating than this because this game came later than Jetpack Jack.I'll give a 5 for the effort though.Next time,try a different game genre.:)
I will repost my comment for everyone to see.
AI's Flaw:When you send out viruses in a line,he will change almost every tower with the virus- only towers.That means you can send many viruses in one line and while he's busy changing all towers,change the virus you're sending into a worm,then he will change the towers into anti-worms.The viruses in front of the team will protect the worms from getting hit and eat the towers while the worms squirm at the back to get ready to attack. Rate + if this helped!