When we previewed Yoku's Island Express
at EGX last September
, one ability we encountered was the Noisemaker, a party blower-like horn that can be used to wake up some of the island's sleeping inhabitants. This certainly won't be the only ability in the game, however, as the latest trailer showcases more of the abilities that Yoku will be able to yield.
As well as the aforementioned Noisemaker, you can also see the Dive Fish, which allows Yoku to reach areas deep underwater. There's also the Slug Vacuum that hoovers up explosive slugs, eventually allowing him to use their power later to clear rocks and reveal new routes.
You'll get to use these abilities when the game is released in Q2 2018.