If you’ve been scrolling through Switch homebrew forums or looking for digital game files, you’ve likely seen the term “Cuphead NSP” floating around. For the uninitiated, an NSP is essentially a Nintendo Switch package file—the format used for downloadable games.

But before you go digging through the high seas of the internet, let’s talk about Cuphead itself, why it’s a modern classic, and the real (and legal) way to get this beautifully brutal game on your console. For the few who haven’t heard of it: Cuphead is the indie darling from Studio MDHR. It’s a run-and-gun platformer that looks like it was ripped straight from a Fleischer Studios cartoon—think vintage Betty Boop or Popeye , complete with grainy film grain, jazz soundtracks, and hand-drawn frame-by-frame animation.

So grab a friend (or go solo), prep your dash and parry, and remember: Don’t deal with the Devil. Just deal with Nintendo’s checkout page instead.