Honestly I wanted to put this to your personal HMD, but the fact that it says 'fite me' and I couldn't protect my identity at all makes it seem like you would fight any concerns I have.
Aside from there being no death listed that works with the canon point you chose, I'm more confused by how openly hostile Undertaker seems to be in your threads. It's understanding that he wouldn't like the way things are set up, especially without memories, but he's always come across as a character that knew how to act and move things so, at the least, they seemed to be more in control. He's a gamer, in the manipulator sense, and a bit of a scientist, and you don't need memories for him to stay like that. This is making him seem... petulant and immediately aggressive? Which doesn't really match his personality, as you wrote it in your application.
Re: Muffin | Undertaker
Aside from there being no death listed that works with the canon point you chose, I'm more confused by how openly hostile Undertaker seems to be in your threads. It's understanding that he wouldn't like the way things are set up, especially without memories, but he's always come across as a character that knew how to act and move things so, at the least, they seemed to be more in control. He's a gamer, in the manipulator sense, and a bit of a scientist, and you don't need memories for him to stay like that. This is making him seem... petulant and immediately aggressive? Which doesn't really match his personality, as you wrote it in your application.