This could be one of the most enjoyable free games, you can play in the infinite building as agent to discover the key! You have to escape the search of other officers, take advantage of the terrain and institutions to the next floor to complete your task! Many agents are not to be underestimated; they are going to attack you violently! The more money you raise, the more chances you can solve the jigsaw and push into the next storey. Your enemies will be increasingly powerful, but do not fear, your weapons are constantly updated. What the secret is awaiting you is hard to understand, all you have to do is go ahead!