When I was still at Mojang and working on Minecraft: Pocket Edition, I had this idea that you were supposed to be able to play the game in portrait mode with one hand, after all that’s how you usually use your phone! No one internally liked the idea haha :) The idea was to use a trackball you flick to move around like in the picture. Do you think it could have been something? Try out a prototype below ⛳️