yeah, the episode was entitled 'Cell's Bag of Tricks'.
In which, he used Tien's Multi-Form Move, Krillin's Destructo Disk, Piccolo's Special Beam Cannon (while using Multi-Form, which I found pretty impressive), and Goku's Kamehameha.
Pretty good episode.
"Do or do not, there is no try" -Yoda
I'm gone...