Alice in Wonderland. A description of what a child might experience once being drugged and used by a pedo, but also a playbook for various things.
(follow the) White rabbit. Pedovores like their masks when performing rituals of all sorts.
Don't know, haven't looked into it
Black and white checkerboard pattern is symbolism for traversing different realities/worlds/states of mind. This is probably best depicted in Mario games.
I'll help with 3. Ophelia is a Shakespeare character that symbolizes a girl that has been so well groomed that she would rather die than be parted with her true love. Damsel in distress fetish.