1. Be in creative mode

2. Make a roof with 4 blocks height of the ground

3. Fly and hit the head in the roof

4. Don't move it. Only for up and down.

5. Start sneak and fly in the same time

6. You gonna be stuck in the air.

7. But now, stop sneaking.

8. You gonna pass trought the roof you make it.

9. It's like gamemode 3

10. I made this bug when i was making my map. Works. Awnswer me!