Card Trivia:Altergeist Haunted Rock
- This card's Japanese name, "Altergeist Haundeadlock" (オルターガイスト・ホーンデッドロック Orutāgaisuto Hōndeddorokku) references a deadlock, a computer science term that's used to describe a state in which two or more processes (running simultaneously) require resources from each other, preventing them from continuing.