Miyazki Mash is a crossover fighting/adventure game which draws characters and levels from various Studio Ghibli films. I was inspired to make this game a reality after seeing a shirt that one of my friends had, and have since made some base sprites for each confirmed character, as well as a rudimentary character select screen and a good bit of concept art.
The idea behind this game is to interweave the stories of each included character into a deep and moving adventure mode, featuring platforming-style levels (akin to the Subspace Emissary mode in Super Smash Brothers Brawl), and allow players to also play against each other in a Smash Bros-styled multiplayer mode. I haven't planned for anything more than that, but that doesn't mean there can't be even more!
Currently there are twelve planned characters, as can be seen in the base sprites and CSS linked above - Totoro (My Neighbor Totoro), Calcifer (Howl's Moving Castle), Robot (Laputa, Castle in the Sky), Kiki (Kiki's Delivery Service), Porco Rosso (Porco Rosso), No Face (Spirited Away), San (Princess Mononoke), Nausicaa (Nausicaa of the Valley of the Wind), Ponyo (Ponyo), Baron Humbert von Jikkingen (Whisper of the Heart / The Cat Returns), Soot Sprites (My Neighbor Totoro / Spirited Away), and Yubaba (Spirited Away). I also have plans in mind for three more hidden characters if I manage to scrounge up enough people to get development running.
Each character is also planned to have their own stage based on a location in their respective films, as well as an important role in the Adventure Mode.
Some concept art and sprites can be found in the Miyazaki Mash tag on my tumblr.