Swampy: Where's My Duck?

Bath time stalls at the missing toy in Swampy: Where's My Duck? Evening bathwater waits in the pipes. Swampy won't settle into bed with soap on hand until the rubber duck comes back. The lost duck rides inside a bubble, and the path home runs through a puzzle setup that uses a small cube to move it across the area.

How to play?

Push the cube into the bubble, sending the duck toward Swampy. Sliding contact works on open ground, though blocked spots stop the cube cold. Building speed changes that. Plan each move before the next shove, then continue until the bubble reaches the bathtub.