1) Do NOT try this in online mode, YOU have to be the one to destroy all of the turrets for this to unlock, and that will not happen in online. Or at least it will be very difficult.

2) Use Derpl, he...it...thing is pretty much the only 'Naut to be able to do this. (EDIT: Users have also said they have done this with Clunk's basic missle attack and other 'Nauts, though I don't know the strategy/build they have used, this is just what I did.)

3) You have to destroy 4 turrets, so obviously, pick the only map that has 4 turrets: Ribbit IV. (EDIT: You can now do this on the new map!)

5) Set the AI to the lowest setting, you don't want to be getting slaughtered while trying this.

4) Try to get as much Solar as you can during the inital drop, it will help.

5) Have the speed upgrade, Piggy Pank and Solar Tree upgrades, and GET THOSE FIRST! Derpl is a slow 'Naut and you have to beat your team mates to the turret as well as Solar for upgrades. Don't worry about health, Derpl starts out with a fair amount of health and as this is a pretty quick thing to do, you won't need any extra.

Here is the build I used (note that I ONLY focused on the bottom and Siege Mode rows)


6) Get the Siege Mode next (you should have enough right off the bat), and head to the bottom turret, and keep attcking it.

7) Use the commands, I'm not entirely sure if the AI listens to them, but they seem to. If you feel like they're about to destory a turret, tell them to defend a turret (by default, it is the #2 key).

8) Once you get a comfortable 300+ Solar (enemy 'Nauts will be going after you, but they're fairly easy to kill and you have your team mates killing the enemy, this adds to the Solar), Get the Range upgrade for Siege mode first, then focus all on Damage.

9) At this point, no need to upgrade anything else, but if you're low on health, teleport to base (and command your team mates to defend turret, just in case) and get the cat launcher/shield upgrades.

10) This may take a few tries to get, seeing an team mates are also gunning for the turrets (it took me 2 or 3), but once all the upgrades are in place, just go ahead an slaughter those turrets.

Notice: If I happen to record myself doing this, I'll be uploading that.