In this experience we want to explore how people will fee when the space is dynamic while the audience is static. Can we do tricks on human vision and judgement on the attribute of space and make their mind believe what they see will have physical feedback on their body. So we built a tunnel which rotates under different speed while there is a platform floating in this tunnel. The player stands on the relatively static path and sees the whole tunnel rotate. He will feel as if it were the path and himself that was rotating instead of the tunnel.