The art of the tutorial: teaching without words
The best tutorials never feel like tutorials. They teach you to play by letting you play.
You can usually tell how much a team cares in the first sixty seconds of a game. Some drop you into a wall of text and pop-ups that explain every button before you have touched one. Others just let you start, and somehow you understand. That second kind is the harder craft, and it is one of the quiet markers of a great mobile game.
Show, do not tell
People skip text. They especially skip it on a phone, on a couch, half-distracted. So the best onboarding replaces explanation with experience. Instead of "tap and hold to charge," the game gives you a target that only a charged shot can reach, and you discover the mechanic by needing it. A rule you figure out yourself sticks. A rule you read scrolls past.
Design the first level to teach
A good first level is a lesson in disguise. It introduces one idea at a time, in a safe space where failure is cheap, and it arranges the obstacles so the right move is also the obvious one. By the time the difficulty rises, the player already knows the verbs, not because they were told, but because the level quietly drilled them.
Trust the player a little
Over-explaining is its own kind of disrespect. It assumes the player cannot figure anything out, and it slows down the people who could. The fix is to teach the minimum and trust the rest to curiosity. A few well-placed moments of "oh, I can do that?" are worth more than a perfect manual nobody reads.
If your game needs a paragraph to explain a move, the move is usually the thing that needs fixing.
Why this matters more on mobile
Mobile players decide in seconds whether to stay. A tutorial that gets out of the way and lets the fun start is often the difference between a game that gets played and one that gets uninstalled. It ties back to something we believe about the whole medium, which we wrote about in what makes a one-touch game great: respect the player, and the design does the talking.