To avoid obstacles such as trees and rocks in Sky Ski, you need to carefully control your skier's direction by tilting your device left or right. Hitting any obstacle will end your run, so staying alert is key to achieving a high score.

If you hit a tree or rock during your run in Sky Ski, your current run will end immediately. You'll have to restart from the beginning, so it's important to steer clear of these obstacles while skiing.

In Sky Ski, you can unlock new characters by collecting gold coins. These coins are scattered throughout the slopes, and accumulating enough allows you to access additional characters and enhance your skiing experience.

While there isn't a direct tutorial in Sky Ski, improving your skiing skills mainly comes from practice. Focus on mastering the timing and direction changes to avoid obstacles and increase your speed for better scores.

Currently, Sky Ski focuses primarily on collecting gold coins to unlock new characters and enhance your skiing experience. There aren't specific power-ups or special items available within the game at this time.

To get more gold coins in Sky Ski, you should aim to complete runs without hitting any obstacles. Additionally, try to maintain higher speeds and make sharp turns to earn more points, which will translate into more gold coins.

As of now, Sky Ski does not feature a multiplayer mode. The game is designed for single-player enjoyment, allowing you to focus on personal improvement and high scores.

In Sky Ski, character customization is limited to unlocking different characters through the collection of gold coins. Once a character is unlocked, you can select them for your runs, but there are no further customization options for appearance.