The game is about playing it for the first time every time you play. Your mission is always to rescue all seven Rainbow Ducks and take them to the Rainbow Door, but each time your attack, jump, enemies and level are randomly generated, providing the sense of playing a game for the first time.
The default controls (customizable through Unity's player):
Left and Right arrows to move
Z to attack
X to jump
To play, extract the .zip archive of either links (Unity Web Player Plugin is required to play the Web version).
For the Web version, double-click the 'alexxa-web.html'.
For the Windows version, double-click 'alexxa-win.exe'.