In Sky Fighter, you can control your fighter plane using the arrow keys or WASD on your keyboard to move left, right, up, and down. Use the spacebar or left click to fire at enemy aircraft.

The objective of Sky Fighter is to achieve the highest score by continuously shooting down enemy aircraft in this endless 2D shooting game. The more enemies you defeat, the higher your score will be.

Yes, Sky Fighter features various types of enemy aircraft with different attack patterns and difficulty levels. As you progress, you'll encounter tougher enemies that require more strategic thinking and faster reflexes.

Unfortunately, there are no upgrades for your fighter plane in Sky Fighter. However, you can increase your score by defeating more enemies and staying alive longer in the endless action-packed gameplay.

Sky Fighter is an endless shooting game, so there's no set time limit. You can keep playing until you're defeated by enemy aircraft. Your goal is to survive as long as possible and get the highest score.

To improve your score in Sky Fighter, focus on efficiently eliminating enemies without getting hit. Try to chain together multiple kills to earn combo bonuses, and avoid collisions with enemy aircraft to stay alive longer.

Currently, Sky Fighter does not feature an online leaderboard. However, you can challenge yourself to beat your personal best score each time you play the game.

When you get hit by an enemy in Sky Fighter, your fighter plane will be destroyed, and the game will end. Your final score will be displayed, and you can restart the game to try again and aim for a higher score.