Video clip has no sound and is for gameplay demonstration. Actual game has sound and music.
Deflektion is a bat and ball game for 1 or 2 players that plays a bit like Atari's PONG in pseudo-3D. For 1 or 2 players (local - same PC).
With 10 skill levels you can play the game in your own style - fast and frantic or take a more relaxed approach - choice is yours!