I also did some research about why is the start menu constantly popping up.
I used VisualBoyAdvance 1.8.0beta3 and the memory editor with a Pokémon Yellow ROM
NOTE : all addresses I give are taken from Pokémon Yellow.
After performing this glitch, 0xCD3B hold $0F, but by setting it to 0, the player loses control.
--ISSOtm (talk) 06:56, 2 April 2015 (GMT+6)