A Harisu is a hedgehog enemy that wanders around in the levels of Sherbet Land from Wario Land: Super Mario Land 3. (mariowiki.com)
Like in Wario Land Shake It, where the timer for the final boss missions continues right through the cutscenes in the middle of the battle. (gamingreinvented.com)
So while the gameplay most closely resembles that of Mercenary Kings on the PS4, it also evokes memories of Wario Ware as you really have to grasp the new gameplay mechanics quickly and execute that level without any real preparation. (playstationcountry.com)