In level 5 you have two paths. You can take any of the two. If you go down, you finish the level by blue teleport. If you go up, you have enough time to build the ship and win the game.
Currently it's very hard to do that because I unconsciously made it too hard to do. I should work more on the game balance before uploading the game :/
I really like that you have two options. This adds another level of decision making for the player. It is just not clearly instructed in this prototype version of the game but can defenetly work out with a simplr tutorial in the beginning.