If spending thousands of dollars makes your stomach turn, this newish party at Yotel is more easily digested. This affably cartoonish affair, held at the space-age hotel in Hell’s Kitchen with the design aesthetics of a Pokémon, draws a gay-friendly crowd lured northward by Patrick Duffy, a promoter. “There’s a lot of pressure in night life,” Mr. Duffy said. “But I feel like Sunday is a comedown. It doesn’t have to be perfect.”