Odyssey provides a fantastic first playthrough, but it's possibly the least replayable 3D Mario. It's got great level design and music, but the moon collection concept doesn't quite feel as rewarding as collecting power stars or shines. Moons reward exploration more often than platforming challenges or completing bosses. This is fantastic on your first run, but when you already have explored everything the moons lose their impact. Probably the second most tedious 3D Mario to 100%, behind Sunshine.