How do I make one-time tutorial?

I want to make a tutorial for my game, so it appears only when you launch the game for the first time. I guess I can do it with save/load operations, but I wonder if there is a better way to do it.

You should work with storage for this or else every time the game is (re)started it will regard it as the first time..

All the events for the tutorial could be put in a group in the event sheet (or on a different event sheet) and be activated/deactivated.

You'd probably base the activation/deacitvation on a global variable which could be set and checked from your local storage..