1. You have seen every single episode
2. You have dressed up as your favorite character for Halloween or for an anime convention
3. You know the songs by heart
4. You compare the original Japanese version to the English version
5. You own a Sennen (Millennium) item
6. You have an arch rival
7. You battled on an island to win a tournament and get the soul of a family member back
8. You have another soul living inside of your Sennen (Millennium) item
9. You have carvings on your back
10. Your other soul has no memory of his past
11. You are the leader of Ghouls (Rare Hunters) and you and your people search for God cards and Rare cards
12. Your city became a dueling city
13. You know the rules to the actual card game
14. You watch Yu-Gi-Oh abrigded
15. Your hair is either tri-colored with spikes, tri-colored with more spikes, white and spiky, white with more spikes, creamed colored, creamed colored with spikes, brown mullet, blond or black
16. You believe in the heart of the cards
17. You have the power to control minds, see the future, look into people's minds, actually walk into people's minds, etc.
18. You have the power to crush people's minds
19. You either wear a school uniform, leather, a belly top shirt with cargo pants, or just a shirt and/or jeans/skirt
20. A family member taught you how to play Duel Monsters
21. You know about Yu-Gi-Oh season 0
22. You own all of the Yu-Gi-Oh manga
23. You like/dislike Yu-Gi-Oh yaoi
24. You know how to use a duel disk
25. You had to travel to Egypt so that the soul inside your Sennen (Millennium) could find his lost memories