im not sure what i should do

I bought the game and im on the last level and nothing makes since like the one about the green things you gotta put in order i only have one thing that is green and no matter what i do nothing works. So the question is if i delete the game can i get it back or is it a one time deal? sorry if the question is repeated.

I just bumped up a thread by Rjx, "last level placements". He has all the answers you need.