Bloodstained, unsurprisingly, marks Igarashi's return to his signature style of game, the "metroidvania" -- so named for 1997's Symphony of the Night, which adopted a style reminiscent of Nintendo's Super Metroid and so codified a genre.
It's a clear attempt to give fans what they want: it's a side-scrolling adventure game with a gothic vibe, starring a new heroine, Miriam. Cursed by magic, she explores a demonic castle.
It's on Kickstarter now, of course, seeking funding not to make the game (that's essentially taken care of) but top-up the dev costs, expand the budget and the game's scope, and prove to Igarashi's financial backers that there is, in fact, demand for a game like this -- something his erstwhile publisher Konami clearly decided was not the case when the franchise was handed to Brit David Cox after years of Igarashi's stewardship.
The game is under development by Igarashi and Inti Creates, the studio best known for its contributions to the Mega Man series (including Mega Man 9 and Mega Man Zero, among others) and Mighty No. 9, the Kickstarted game by former Capcom R&D head Keiji Inafune, which is due out in September.