• the play-area is restricted by a cubic shape. it's always good to know the ships relative position.

• don't hold still! rotate the device to get a better view of the play-area.

also: some situations can only be solved through switching between top- and back-view.

• the speed-slider can be touched on any point - the ship reacts instantly. (for example: no need to move the finger from 100 to 300)
• speeds above 100 bring bonus points (finish levels faster -> get more points)

• using the laser might slow down the ship. (it needs energy of course)
• disabling in-game-music can get you smoother framerates in some situations.
• the game saves progress after finishing a level and can be paused any time, so no need to miss the metro.