2:13 he isn't dead but he has fatal injures so the other AI just left him alone because he was gonna die (if their hands and feet twitch then thats a sign of death for them)
If you mean the game on pc go to steam and buy the game and install it. On mobile it is only on Android devices not on ios find it on the google play store. I hope that helps. Good luck
Nice video, btw we are 2 people using this account and I have a request for the next episode | Idea: 1 shadow mutant with 9 mutants vs all cosmetics, 2 special forces, and 1 breacher