I used 2 cats in the back and 2 ninjas in the front. I had the upgrades fully maxed on wave 12, and had 30,000 points on wave 17. I think if you don't have it by wave 18 you'll be in trouble because the waves start to get difficult (I lived on multiple occasions with 1 hit left). Just be sure to strafe up and down the map when you use your special to take out all the mobs. If you need any advice, message me. :P
Just got the last badge. I used the Wave at Max, the Laser at Max, and kamikaze/commander/courtesy ship. For the first 3 'levels' I focused on grabbing as many purple upgrades as possible, then switched to dodging 100%. Stay near the bottom of the screen, more to the center. It'll take a few tries because Survival is random on what spawns.
I love this game. I think it is a very interesting twist on a TD game. Very unique and the combinations are fun; it would have been better if there were even more. Thanks for uploading it!
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 "Frantic 2"){kind=icon}
 "mini Tower Defence (mTD)"){kind=icon}
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