If you're looking for anime similar to Robin-kun to 100-nin no Otomodachi, you might like these titles.
A collaboration between the anime studio Tezuka Productions and the outdoor clothing brand Timberland to promote Timberland's Earthkeepers Collection -2006 Spring Tezuka Partnership.
What if you could fly? Jumping by Osamu Tezuka lets us literally jump through time and space. Shot from a first person perspective with nothing but ambient noise as a soundtrack you are witness to a seamless journey across rural Japan, into the heart of modern Tokyo, and beyond, showing us a subtle study of modern life and the impact that progress has on us and our environment.