On the top floor of the towering atrium at the Strip entrance to The Forum Shops, Roku occupies an airy dining room lined with bamboo stalks and tall windows facing the Strip. Sushi is the main draw, and you can't go wrong with the sea bream or monkfish liver or the baked lobster roll with creamy miso sauce. But greater rewards come to those who venture deeper into the extensive menu. Seasonal items worth considering: popcorn shrimp tempura in spicy creamy sauce, beef rib-eye-wrapped asparagus, or Hakata ramen with pork Cha-shu. Gluten-free and happy hour menus are available.