Delete your Facebook app, then log in your game go to setting click link facebook, will bring up browser FB login, after link FB, reinstall your facebook app back.
What's your strategy for clearing Infinity Train? I see others they did 300 levels. I keep dying because I have to wait for the boss to come closer but the mobs would already swarm me before that happens.
So the weak enemy makes the players health go to 1 as well, which makes some of the upper levels impossible. If there's no fix to it, possibly giving us a slider for enemy speed to slow them wayyy down is also a fix for the impossible levels?