The draw of Skatebird is summarised early on. “Remember when I told you about human skaters?” says one bird to another. “They can only Ollie once. You’re a bird. You can fly.” True enough, triggering a second ollie while airborne tugs you upwards, amid a flurry of feathers. If you wish to spin, your customised bird will lunge downward, as if pecking at a worm, and whirl without a care, board in beak. The question is, Why? What tethers these creatures not quite to the earth but to the limbo just above it, borne along on wheels of thundering polyurethane?