Several issues in Mario Golf using uCode 5 with Framebuffer enabled -
The sky has black lines on the opening sequence and in-game
Some of the transitions between screens are black and also the playfield is black in-game until you move, at which point you can see the fairway, then as soon as you stop it goes back to black again.
Also the course name text is garbled.
Guessing all of this is to do with the Framebuffer!
