Thank you for suggestions! Flares and flashlight would be pretty simple to add, I will consider adding Lex and Tim, which will be a lot of work yes, making the models, textures and animations... I made some humans before for the other projects, so it shouldn't be that hard.
I was thinking what would happen with Lex and Tim in the game when the T-Rex spots them outside the car and you have to distract her with flare, but Lex will definitely scream at T-Rex every time so that's the problem :D
And maybe at the beginning I'll add Gennaro running to the toilet when the T-Rex comes out of the fence, and goes to hunt him, so you have time to save the kids.