@UgAhgItHurts: First, I apologize for mis-spelling your user name. I still tip my hat to you as I can't get below 1:21. I went back and attempted several variations on 8 collector set-ups. I am a few seconds away from being able to get those. Let's face it, 7/22 is yours. Well done.
@AuAhgItHurts: I have attempted your layout many times and reach the same broken path. So are you saying you did NOT get 1:18, but that it is a theoretical lower limit? My best is still 1:21 using 9 collectors.
7/22 NOTE: Any time of over 1:22 will be substantially longer as the most efficient path will have been inundated by creeper at 1:23. I would not have found this path except that hawk45 posted his time, telling me it was possible.
Here is a picture of the set-up that yielded a 1:34 best for me. hawk45 is still 3 seconds faster than my best time. URL: https://picasaweb.google.com/chilesej/Artwork#6038700183019587346
Similar hawk45: My upper right collector is as high as possible in the valley as I took 3 more seconds. So I bridge W-E higher then come down to 1/2 position W of your SAM bridge collector.
@hawk45: I assume you went through the NE valley to get to the totem. I was always a few seconds short and had to go around for a 1:46. I'll keep practicing. My electrons are still too slow.
@ronco: Grab all 4 of the outer space stations using the 2 teleport stations. When you get about 300 ships in the teleporters, transport to the center figure. If you want impossible, try getting the entire screen blue before taking the center figure.
I did have one level which ended in a tie as the two sides died off to zero. This left a peaceful universe with no one left to fight. It was quite a pleasant experience.
 "Creeper World: Evermore"){kind=icon}
 "Solarmax 2"){kind=icon}