“High-Speed Robot Hand.”

https://www.youtube.com/watch?v=-KxjVlaLBmk

“Worlds fastest Rubix-cube solving machine.”

https://www.youtube.com/watch?v=_d0LfkIut2M

“Janken (rock-paper-scissors) Robot with 100% winning rate.”

https://www.youtube.com/watch?v=3nxjjztQKtY