So after about an hour of trying to do so, I figured out on my own how to put two games on to the same cart. I tested it on real hardware and it works great. In my code I made up, pressing 2 will get to the other game while all other button presses (including 1) will go to the beginning of Boobs. Boobs is 2k and the other thing is 2k, and I merged them into one 4k thing so now Boobs is 4k. but it won't be called Boobs any more. It will be called Boobs/secret game title. Once Boobs ends, it goes back to the Boobs title screen and will keep your high score unless you press reset, then it will go back to the SELECT GAME screen and erase your high score.