E.T. Escapes Time Trouble

You have found a mysterious cube full of energy. Somehow you opened a portal to past and locked yourself there. Find the way to fix your portal and return!

What is this thing? You know it's full of mysterious energy, but you don't know how to activate this little device. Time traveling is a dangerous thing, but your curiosity force you continue. Give it a chance and experience something you won't forget. Take this cube, activate it and see what will happen next.