He must have maxed out on labs and researched nothing but Missles before you attacked, he then let you take his planets and pooled his resources to buy 1 cannon lol
What i dont understand is, how did you lose? If you had 12 planets and he had 3, and if your fleet was twice as big as his, why didnt you go focus all your power on destroying the Cannon? Even if you lost a lot of your fleet, you had 12 planets so you could rebuild and re-arm much quicker than he could.
Also it takes 2 hits to totally wipe out a planet, how did you just sit there while he fired shot after shot, and it takes a several minutes for it to cool down!
lol this does sound like a bizare game, but i would love to watch the replay 