Yu - Gi - Oh ! GX - Episode 110 " Primal Instinct " , known as " Tyranno Kenzan and Jim of the Fossil Dragon " in the Japanese version , is the one hundred and tenth episode of the " Yu - Gi - Oh ! GX " anime . It first aired in Japan on November 15 , 2006 , and in the US on May 26 , 2007 . Summary . Axel is recovering from his Survival Duel with Jaden . He ' s eating a large lunch , and wonders aloud why he ' s so tired . He states that he participated in numerous Survival Duels at West Academy , but he had never felt so drained after having one before . Adrian Gecko is eavesdropping outside Axel ' s door , and wonders if this is connected to Thelonious Viper ' s activities . The next day , Syrus rushes into the infirmary having heard that Jaden has recovered , only to find he ' d busy gorging on two lunches - as both Alexis and Blair made him one when they heard he collapsed . Nurse Fontaine advises him to rest for the day , but he instead finishes eating and rushes from the infirmary , stating he feels wonderful . After he leaves with Syrus and Hassleberry behind him , Miss Fontaine tells the girls to try and get Jaden to rest and tell him he can ' t duel for 2 weeks , something they see as impossible . Outside , Jaden , Syrus and Hassleberry meet up with Jesse , who states he heard that Axel was similary exhausted from the Duel and that he heard a rumor saying that Jaden was forced to give up dueling . . Hassleberry is suddenly attacked by Shirley from behind . The South Academy champion , Jim Crocodile Cook , rushes over and orders the crocodile to release him , apologizing . Jim states that she usually isn ' t so riled up - and has only become so since the previous day . He says that powerful electromagnetic waves are resonating from somewhere on the island , and that such waves stir the fighting instincts of reptiles . He pulls out a meter that measures electromagnetic waves and says that Shirley started acting up in the middle of night - the same time that Jaden and Axel had been Dueling . The five of them end up following the meter ' s readings into the forest , where they begin to get stronger . The waves seem to be affecting Hassleberry strangely as well , and he jumps at Jim in a rage . He ' s restrained by Jaden and Jesse . Syrus speculates that it may be because of the " dinosaur DNA " that Hassleberry has . Jim challenges Hassleberry to a Duel , which the latter seems to accept . Jim believes that if he and Hasseleberry experience the same exhaustion that Axel and Jaden did , then it would provide more evidence that the waves are to blame for it . Meanwhile Jaden and Jesse get over excited during the Duel and start cheering on both teams , despite Syrus complaining they should be more concerned about Jim ' s ' waves ' . Both ignore him and in the dub Syrus accuses them of being exactly alike , which they both deny in unison . After Jim inflicts damage with " Flint Cragger " , Hassleberry appears to return to normal . Jim ultimately wins the Duel , but both of them collapse afterwards . Thelonious Viper ' s alarm system suddenly starts blaring , and his security cameras show that Adrian is attempting to gain access to the lab . He states that if Adrian is suspicious of him , he ' s going to have to be eliminated . Featured Duel : Tyranno Hassleberry vs . Jim Crocodile Cook . Turn 1 : Hassleberry Hassleberry draws " Gilasaurus " and subsequently Special Summon s it ( 1400 / 400 ) through its own effect in Attack Position . Hassleberry then Tribute s " Gilasaurus " in order to Tribute Summon " Dark Driceratops " ( 2400 / 1500 ) in Attack Position . Hassleberry then Set s a card . Turn 2 : Jim Jim draws " Flint Cragger " and subsequently Normal Summons it ( 800 / 1600 ) in Attack Position . Jim then activates the effect of " Flint Cragger " to send it to the Graveyard and inflict 500 damage to Hassleberry ( Hassleberry 4000 → 3500 ) . Jim then activates " Fossil Fusion " to remove from play " Flint Cragger " and Hassleberry ' s " Gilasaurus " from both players ' Graveyards and Fusion Summon " Fossil Dragon Skullgar " ( 2500 / 0 ) in Attack Position . " Skullgar " attack s and destroy s " Dark Driceratops " ( Hassleberry 3500 → 3400 ) . Jim then Sets a card ( " Call of the Haunted " ) . Turn 3 : Hassleberry Hassleberry draws " Jurassic World " . He then Normal Summons " Babycerasaurus " ( 500 / 500 ) in Attack Position . Hassleberry then activates " Jurassic World " . Now all Dinosaur - Type monsters on the field will gain 300 ATK and DEF ( " Babycerasaurus " : 500 → 800 / 500 → 800 ) . On Hassleberry ' s End Phase , he activates his face - down " Volcanic Eruption " to destroy all cards on the field . Since " Babycerasaurus " was destroyed by a card effect and sent to the Graveyard , its effect activates , allowing Hassleberry to Special Summon " Sabersaurus " ( 1900 / 500 ) from his Deck in Attack Position . Turn 4 : Jim Jim draws . He then activates " Dowsing Burn " to remove from play " Dark Driceratops " from Hassleberry ' s Graveyard and destroy " Sabersaurus " ( as " Sabersaurus " and " Dark Driceratops " were the same type and the former monster ' s Level was lower than the latter monster ' s Level ) . Jim then Normal Summons " Sample Fossil " ( ? / 0 ) in Attack Position . Jim then activates the first effect of " Sample Fossil " to Special Summon Hassleberry ' s " Sabersaurus " from the Graveyard to Jim ' s side of the field ( 1900 / 500 ) in Attack Position . Due to the second effect of " Sample Fossil " , " Sabersaurus " cannot attack or be Tribute d . Due to the third effect of " Sample Fossil " , its ATK becomes equal to the original ATK of " Sabersaurus " ( " Sample Fossil " : ? → 1900 / 0 ) . " Sample Fossil " attacks directly ( Hassleberry 3400 → 1500 ) . Turn 5 : Hassleberry Hassleberry draws . He then activates " Card of Variation " to draw two cards ( " Tail Swipe " and " Big Evolution Pill " ) . Hassleberry ' s hand contains " Big Evolution Pill " and " Living Fossil " . Hassleberry then activates " Living Fossil " to Special Summon " Babycerasaurus " from his Graveyard in Defense Position with 1000 less ATK ( 500 → 0 / 500 ) and its effects negated . Hassleberry then Tributes " Babycerasaurus " in order to activate " Big Evolution Pill " . Now for the next three turns , Hassleberry can Normal Summon Dinosaur - Type monsters without Tributing . Hassleberry then Normal Summons " Saurobeast Brachion " without Tribute ( 1500 / 3000 ) in Attack Position . He then activates " Tail Swipe " to target " Saurobeast Brachion " and return " Sabersaurus " and " Sample Fossil " to their original owners ' hands ( as both monsters ' Levels were lower than the Level of " Saurobeast Brachion " ) . Jim ' s hand contains " Sample Fossil " , " Pot of Avarice " , and " Specimen Inspection " . " Saurobeast Brachion " then attacks directly ( Jim 4000 → 2500 ) . On Hassleberry ' s End Phase , Hassleberry sends " Sabersaurus " from his hand to the Graveyard to prevent " Card of Variation " from inflicting 3000 damage to him . Turn 6 : Jim Jim draws " Fossil Fusion " . He then activates " Specimen Inspection " to send " Sample Fossil " from his hand to the Graveyard and declare one monster type and Level . Once that is done , Hassleberry must send a monster with the declared type and Level from his Deck to the Graveyard . Jim tells Hassleberry to send a Level 8 Dinosaur - type monster from his Deck to the Graveyard , so Hassleberry sends " Ultimate Tyranno " from his Deck to the Graveyard . Jim then activates " Fossil Fusion " to remove from play " Sample Fossil " and Hassleberry ' s " Ultimate Tyranno " from both players ' Graveyards and Fusion Summon " Fossil Dragon Skullgios " ( 3500 / 0 ) in Attack Position . Since Jim summoned a monster , the effect of " Saurobeast Brachion " activates , switching it to Defense Position . " Skullgios " then attacks " Saurobeast Brachion " . Jim then activates the first effect of " Skullgios " to switch the ATK and DEF of " Saurobeast Brachion " ( " Saurobeast Brachion " : 1500 → 3000 / 3000 → 1500 ) . " Skullgios " then destroys " Saurobeast Brachion " and inflicts piercing damage to Hassleberry ( Hassleberry 1500 → 0 ) . Featured cards . The following cards appeared in this episode . Cards in italics debuted here .