help! with three consultations

Hello, I have three doubts if someone could help I would appreciate.

1- Maintain fixed the game buttons on the screen when the character travels on the game.

2- how to save and load games in html5 for web (desktop PC) and mobile.

3- How do I get the .apk game suits different display devicesand phones with xdx intel and in horizontal screen .

Thank you very much for your help from now.

1 is quite simple. You just create a new layer called “buttons” and put your buttons on that layer. They will stay where they are even when the camera on another layer moves to follow your character.

I have no idea about 2 and 3.

Thank you very much, I had not thought of that