As a zombie, R does not have a heartbeat and constantly craves human flesh, especially brains, as he is able to "feel alive" through experiencing the victims' memories when he eats them.
Sebagai zombie, R tidak memiliki detak jantung dan terus-menerus membutuhkan daging manusia, terutama otak, karena ia mampu "merasa hidup" melalui pengalaman memori korban ketika ia memakannya.