The big octopus prevents the two treasured boxes in a high tower from being stolen. An explorer trys to get the boxes. The big octopus will bear many little octopi with poison gas. If the explorer smells the gas, he will be dizzy and fall down.

- The explorer must get up to the top in 100 seconds, or he will die.

- Just when the explorer gets up to steal the box, a new video appears.

- The poison gas blows through the five stories in a random way.

- The explorer has five chances to get the treasured boxes.