Dadudutch in flatspace

Use the power of the space ship of Dadudutch to alter the orbits of other planets. Make the planets bounce, merge and circle around each other. Complete the nine challenges that face the crew of the green space ship.
Each level is based on different physics such as gravity, harmonic oscillations, collision and other kinds of particle interactions. Enhance your knowledge of physics while solving the riddles put forth but Dadudutch and his friends.