If you haven’t done so already, your homework is:
1) Make the clouds spawn and move from both directions (left to right and right to left) the same way your birds move from both direction.
2) After this, make it so that when the player shoots a fireball, the fireballs are not directly on top of the player bird, so you want to change the x coordinate for spawning the fireballs (both the regular fireballs, special fireballs, and giant fireballs)
You can contact me via ddjapri@ayclogic.com for any questions or concerns.