I just checked the firmware, and it seems to work similarly to my cart. what you do is, take retrogamefans DSTT/YSMENU updates, rename TTMENU.DAT to _DS_MENU.DAT(if that doesnt work, remove the DAT part!) and put it in the root of your MicroSD card. everytime you boot a game, it will now boot into TTMENU when you choose the Game icon. Hope this helped!