Hi, StrawberryMilk. Our request to have Endless Ocean 1 added was denied, because nobody had run it yet. Maybe if you do end up running it, let me know and we can request it to be added again.
Hi! Concerning your question about PAL and NTSC, I am fairly certain they are the same.
Hi Adam. To answer your question on running the game with USB Loaders, yes. Currently, all forms of USB Loaders (Dios Mios, Nintendon't, Wode, etc.) are allowed.
Now about emulating the memory card, I am unsure. Memory card emulation has been brought to my attention before, but the runner in particular chose not to submit their time. I don't know enough about it to tell you the advantages/disadvantages of using that feature. The most I can do right now is tell you that you are okay to use MCemu for the time being, and I will get back to you with a more solid answer.
However, my suggestion to you is to invest in an official memory card & game. Official memory cards are cheap and plentiful online, and sell for dollars via most online sites. Copies of the game are also pretty cheap, selling for around $20-40 online.
Louisiana, USA