get an engine disruptor weapon (trill?) and go to a crowded planet and send out pulses until you have many ships surrounding you with their engines broken. check to see what these ships are buying and selling and if you're lucky some may be buying and selling the same item, even different ships. then buy and sell, buy and sell and your money multiplies exponentially.
24 was the hardest. 25 was easy, top right, bottom left, bottom right was what i did. if you have two corners and he has a corner and the center, hes done.
the problem is that when i try a level 4 puzzle it always ends being impossible. not impossible meaning too hard, impossible meaning not do-able. there will be fixed pieces with no movable pieces with that color in that spot.
this is one of the best games i've ever played. i'm looking forward to playing a 7 differences. all you people saying it's stupid are just frustrated because you couldn't find all the differences. obviously your eyesight is failing from spending too much time dare i say it at the computer. i'd be ashamed to use a guide for this game.
i haaaate the biters. they suck ass. if you cant beat a nest mode try killing like 150 greens and then mostly hanging out in the middle killing anything that comes out your way. thinking of it more as a defence kind of thing can help. cuz it is a defence game, its just your defending your guy and theres only 1 life, lol
 "Ball Drop One"){kind=icon}
 "Starfighter: Disputed Galaxy"){kind=icon}
 "FlashTrek: Broken Mirror"){kind=icon}
 "Endless War 3"){kind=icon}
 "light-Bot"){kind=icon}
 "Duck, think outside the flock"){kind=icon}
 "SandStorm Racing"){kind=icon}
 "Hexiom Connect"){kind=icon}
 "6 Differences"){kind=icon}
 "Epic war"){kind=icon}
 "Amorphous+"){kind=icon}