ECHO's original time puzzle challenges you to set off a looping chain reaction and destroy all the precious gems on the field by echoing past actions. Move the balls around the cells, remembering that exactly every three moves they will exactly repeat the given route of movement. Synchronize cyclic impacts of spheres on crystals of the same colors, skip moves to activate the assembled mechanism and quickly erase erroneous trajectories. Complete all one hundred and sixty unique stages without dead ends and earn game points in ECHO.
