Every time I join the game it flickers. Also I love it it cracks me up.

But it’s only when I connect my controller to my iPad and use it to push the button it the button goes back and forth. Some may say it’s annoying I think it’s funny

Steps to reproduce 

1. Grab your controller 
2. Press play
3. Press on your world 

now it should flicker

Note: This is on MCPE