While sampling the finest sushi and omakase in Denver, you might not come across many generous happy hours. Ototo, dipping into the tradition of its Pearl Street sisters Sushi Den and Izakaya Den, is a surprising exception. Roaring back from the dead in mid-2015, Ototo immediately released a kaiju-sized happy-hour menu that shows off the restaurant's eclectic and cozy fare, served Wednesday and Thursday from 4:30 to 5:30 p.m. and 9:30 to 10 p.m. (both end one hour later on weekends). Scallops and enoki mushrooms from the charcoal-fired robata grill ($5 each) are wrapped in bacon and simply skewered, paired with $4 draft beers, half-price wines and hot sakes to keep the vibe lively. Crisply seared gyoza ($4) represent Ototo's classic roots, while sublime Japanese fried chicken expands on a very welcome trend. It's a happy hour that's true to the communal robata spirit, and a refreshing successor to the Den lineage.