Fix swipe in both directions (left & right) with one hand.
Disable interactivity with Neuron, when smile picture is shown.
Extract Neuron's animations from FBXes.
Icon fades in "Brain" scene when mouse hovers over brain parts.
Add state set to "played" to pexeso-like minigames.
Clean up errors and warnings.
Add state set to "played" to "FindIt" minigame.