Plank not included is a virtual reality (walk the plank) experience.
You will experience acrophobia (fear of height)
1-You need an HTC Vive and a play area at least 3.3 m x 1.5 m.
2-You need a plank minimum 8 feet or longer.
3-Align your real plank with the virtual one on the floor.
4-Catch the two hummingbirds at both ends of the plank with the virtual net attached to your right controller.
5-Once the two hummingbirds are catch, it will load a new level higher from the ground than the previous.
6-Be safe.
7-Have fun.
8-Let your friends try.