| Author | Solution |
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lucas1987
799,154
Achievement won on 18 Jun 08TA Score for this game: 429
Posted on 09 September 11 at 14:54
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| This is actually incredibly easy. You have the same objectives as single player, only this time you have someone to help you do twice the damage. Just create a game after each level and keep upgrading your stuff in between levels. Player two needs to go to the "create room" screen to upgrade his stats though. Then just join whoever's hosting a game. Just takes a bit of time is all. |
DROGTURIST
261,086
Achievement won on 09 Mar 13TA Score for this game: 429
Posted on 09 March 13 at 20:30
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This solution has 0 positive votes and 0 negative votes. Please log in to vote. |
This solution is for people like me, coming very late to this game when no one else wants to play it. If you want to dualbox boost this, like I did, you should keep in mind that the HP of houses, turrets, etc is increased in coop and at first you won't be able to score golds even on the early levels. In order to unlock Lightning 3 and Earthquake 3 (ignore Tornado 3) and make the endgame easier, you will need to progress to Switzerland, and then go back and get golds in Canada and USA.
To beat Research Facility (Switzerland) easily, use Lightning on the satellite dish due north from where you start, and then press X over the refill station (if you get the prompt to do so) and then use the orbital strike to destroy the HQ to the right.
I haven't seen any other solutions/guides for this mention it, but when I did this my second box/account didn't get any achievements for coop, and it didn't even get to keep its research points when I quit out and came back to the game later. My main account got both achievements and research points. |