YMMV / YU-GI-OH GX: The Wrath of Viper

• Nightmare Fuel:
  • The slaughtering of the crew of the KCII Reliant as Viper and his monsters storm the ship
  • Syrus Truesdale under mind control and subservient to Viper. Enough said.
  • Zure's insatiable thirst for blood
  • Brron eventually reverting to the personality he originally had in the Dark World arc of the anime. Sweet dreams.
  • the Evil Dragon Ananta
  • Viper's dying moments
• One-Scene Wonder: Mokuba and Rebecca (nèe Hawkins) Kaiba.
• Tear Jerker: Every. Single. Death scene of a heroic character.