The starter Touhou characters are Chibi Reimu, Chibi Marisa, and Chibi Sakuya. The concepts basically the same, beat the rival...fight against the Elite 4...etc. You can find the .rar using google, and it should come with the VisualBoy Advance. The VBA was supposed to be used for playing your pokemon online, but ROMs were later made to play the game without having to buy it.
(Bottom Left shows Chibi Momizi Inubashiri from the Touhou Series.)
(Top Right shows the interface. It's just like regular pokemon.)