This could be one of the top fun free games which you can play as an agent to find the secret in the unlimited floor building! To finish your mission, you need to avoid the hunt by other agents, use the terrain advantages and institutions to reach the next floor! Other agents should not be underestimated, they will actively attack you! The more coins you collect, the more chances you can solve the puzzles & go through the next floor. The enemies you face will be more and more powerful, but don’t worry, your weapons will be constantly upgraded. It is hard to know what the secret is waiting for you, all you have to do is keep moving forward!