Perhaps most unsettling are the shark and octopus storylines: The octopus path ends when a shark doesn't fall for your ink-spewing trick, and it finds your calamari body delicious. Alternately, while inhabiting a shark's body, you can eat an octopus who ineffectively tries to use ink to escape.
Are ... are you eating yourself?
Yes, you're almost certainly eating yourself. That's some serious multiverse-level mind-screwing for a book aimed at 10-year-olds.