(There are instructions in the project, just click the: ?) Rotate the models with the arrows. You can vote maximum 5 times on each model (Vote for how much you like a model. If you like it a little you can vote 1 time. If you like it a lot you can vote 5 times.)
Thanks to someone on YouTube who have learned me this 3D Technic. I am afraid I do not know the name of this youtuber. Thanks to the composer who made the music. I do not know his or her name either.