回 声 SOUND RETURN

The Mobile version can go to https://xpaidia.com/game/audiorails/ to get a better experience. Instructions Click the right-up button to listen to the puzzle: a targeted sound you should interact with the scene objects to reproduce. and if you make it right, the progress bar will grow and fill, then click the up-right button to go to the next level. The right-down button is a skip level for debugging and test, its no needed for the game, but you can use it to pass the level. Its just an exercise ...