A:AnswerYes. However that would depend on what level of games your going to install on it. It doesn't have the power to run intensive 3D games. 2D side scrollers may be okay. Any kind of mobile device game is probably fine. Steam, that's a tough one.
A:AnswerIt should power up when the lid is opened or pressing the power key (top right corner) for about 10 seconds. My guess is a bad charger is not providing power and the battery is empty. You can use any charger having a new type C plug.
A:AnswerGo to settings, make sure your bluetooth is on, and use "pair device". Also make sure your phone's bluetooth is on and in pairing mode. Pair your phone with your Chromebook, and the rest will guide you through what to share, etc.