i agree with Pykrete, the symbols moving puzzle with the male and female head is impossible and you need to press skip puzzle, you cannot swap positions from left to right and vice versa
well the planet does not send ships but you can still build on the planet in that small frame of switching, i don't know if the buildings remain after colonizing the planet
I found a bug:
In overview mode, when you switch to planets with the arrow keys and you are switching between a colonized and non colonized planet, there is a very small frame where you can see the non colonized buildings as 0's, and if you quickly click just after pressing the <= arrow when switching you can build on the non colonized planet before colonizing it :P need to check if the same will send ships, will update you if it does :D cool game though
no shatterdpixel it's not, i've tired it, with starter and bonuses from 3 stars you can get to last level in one play... if you are smart enough that is, that means: don't replay one stage... 10-20 times :D
P.S. Great Game!
Just Released a new version fixing this bug ;)