There ' s a bit at the end where the other bees are guiding the airplane down and they keep changing Thinking bee ! Thinking bee ! Thinking bee ! . So I think that did it . <| sep |> not in that city . <| sep |> Cold , cold people . Mine are the same . <| sep |> I did the same thing , basically . I just googled 5 x 5 empty grid and 6 x 6 empty grid , printed out like 20 copies of each and cut out the shapes out of the same grids I was using to draw and solve the puzzles on . I wound up using the grids for more than just the tetronimo puzzles , too . I found it particularly useful for the circular pillar puzzles at the end of the mountain to be able to visualize them on a flat planespoiler . I just found it helpful to work out the paths on paper and then go back to the game and enter my solution .