Crowning Moment of Awesome: Both last star gets (what happened was they lost about thirteen stars of footage due to screwing up somewhere and had to record thirteen extra ones). The first one happened when they were racing Koopa the Quick at Tiny-Huge Island, after minutes of getting screwed over, Spike long-jumps in front of Koopa and gains victory by 2/10ths of a second. See about 10:14 in this video..
The second one involved Jay going for the star on the floating island on Tall Tall Mountain in the Prelude to Bowser episode. He gets to the part where you have to roll the log and the rest is history. See 1:00 in this video.