Just a quick critique:
There are 21 starter choices actually, 3 for each generation.
There actually are a few legendary pokemon available, though they're not the one that exactly come to mind when you think legendary. Phione, Type:Null, Silvally, and most recently with the episode 18 community release, Poipole and Naganadel.
Team Aqua and Magma aren't the ones that make cameos, but rather they're gangs with similar types and names to pay homage to the Hoenn villains. They are not in any way affiliated with the original teams, however.
I guess I'm just a little confused about the way this is written. The writing style is by no means poor, but it feels strange that for a review written on Reborn's own forums, that the review reads as if it's introducing the game to someone unfamiliar with it entirely.
This is just nitpicking on my end and I guess could be considered more of a counter-opinion, but to compare the storytelling of this game to the Hunger Games Trilogy feels... misplaced I guess. While there are some themes that some people would consider "edgy" or things you might see in something like a young adult novel, I feel like the depth of the issues brought to light in this game go beyond the scope of what any young adult novel would normally be able to distribute for a reader's digestion. While themes of death run throughout both Reborn and the aforementioned Hunger Games Trilogy, I feel Reborn does, for the most part, an excellent job of portraying a diverse cast of characters boasting different themes in regards to gender, sexuality, mental illness, religious affiliations, and racial diversity (though this could still be stronger in my opinion; aside from playable character options, there are only two characters, Samson and Arclight, who represent PoC).
Overall the review is by no means bad, but I'd consider polishing it based on my first 4 points (the 5th one is simply my own thoughts and for no reason should make you feel as if you should change your own personal review).