https://studio.code.org/s/course3/stage/13/puzzle/1
Below are the images of each level along with the code needed to complete that level.
Level 1
Level 2
Level 3
Level 4
Level 5
Level 6
Level 7
Level 8
Level 9
Level 10
Level 11
Level 12
The last, thirteenth level is a multiple choice question.