using the long paddle on boss mode make you invincible (Forgot to give it the Paddle tag)
if the ball collides with Khaled's projectiles it will freeze forcing you to restart (I fixed this but didn't upload the updated version on accident)
If you bomb Khaled at the perfect time he will be 1 shotted. This is more of a unity collision issue than a bug.
Also you cannot use long paddle or big ball on rotate mode, this is intentional and not a bug.
The ball sliding across the floor if you don't hit it is also intentional but it will force you to restart on peaceful and boss mode.