You can switch between 3D and 2D any time.
Under the choice between the 3D game and the normal quiz in 2D: the player can switch between them whenever they like
Quandocumque vis, inter 3D et 2D mutare potes.
Scribe ut eum diceres, ut loco ubi ostenditur conveniat.
Prius signa «Robotum non sum».