The first one is "Hibi No Neiro" (Tone of everyday)by Sour
(Thanks JenSki for posting about this video!)
It reminds me of this one, from 2006, on treadmills called "Here it Goes Again" by Ok Go!
Why do I call it cyborg choreography? They are using their bodies and machines to come up with a totally new type of movement. LOVE it! They both also have this great characteristic that makes them appear like they were just thrown together on a home video camera. The choreography is so amazing and they both have this charming childlike quality, like the people are just playing rather than trying too hard.