Try to find all the matching pairs of cards. The cards have the principal aliens of Ben 10: benwolf, bigchill, brainstorm, cannonbolt, chromastone, ditto, echo echo, fourarms, goop, heatblast, humongousaur, jetray, spidermonkey, swampfire, upgrade, wildmutt and xlr8.
In this game a child got locked inside his own play room. As player you need to help the kid by clicking on the objects and solve some interesting puzzles to find the hidden key and escape the child. Good luck and have fun playing Knf escape games, free online and point and click games.