This is NOT your grandfathers crate puzzle! Push all crates to the exit, but beware of the creatures who want to keep the crates for themselves. Kill bugs with "lasers" and fake crates.
Use arrow keys to move the player and push crates and lasers.
A context menu should be shown when right-clicking or, on touch devices, long-pressing in the game. This menu especially allows to play in full screen and control the volume.