you Advance Summon this card, the monster used as Release must be WATER monster. This card gains 300 ATK for each other face-up WATER monster you control.Super RareGENF-JP009 Bugman X XDARK/Demon - Effect/3/0/2000If you control a face-up "Bugman Y" when you Normal Summon this card successfully, you can Special Summon 1 "Bugman Z" from your Deck.GENF-JP010 Bugman Y YDARK/Demon - Effect/3/1400/1600If you control a face-up "Bugman Z" when you Normal Summon this card successfully, you can Special Summon 1 "Bugman X" from your Deck.GENF-JP011 Bugman Z ZDARK/Demon - Effect/3/0/1500If you control a face-up "Bugman X" when you Normal Summon this card successfully, you can Special Summon 1 "Bugman Y" from your Deck.GENF-JP012 Super Bugman DARK/Demon - Effect/4/0/3000This card cannot be Normal Summoned or Set. This card can be Special Summoned in Defense Position by removing from play each 1 "Bugman X", "Bugman Y", and "Bugman Z" in your Graveyard. While this card is face-up on the field, the ATK and DEF of all face-up Attack Position monsters is switched. There can only be 1 "Super Bugman" face-up on the field.Super RareGENF-JP013Mainspring Soldier EARTH/Warrior - Effect/4/1800/1200You can only activate this effect during your Main Phase. Until the End Phase, this card's level is increased by 1, and it gains 400 ATK. While this card is face-up on the field, this effect can only be activated once.GENF-JP014Mainspring Magician FIRE/Spellcaster - Effect/4/600/1800If the effect of a "Mainspring" monster other than a "Mainspring Magician" activates, you can Special Summon 1 Level 4 or lower "Mainspring" monster from your deck in Defense Position. While this card is face-up on the field, this effect can only be activated once.RareGENF-JP015 Mainspring Juggler WIND/Psychic- Effect/4/1700/1000If this card battles with an opponent's monster, you can destroy that opponent's monster after Damage Calculation. This effect can only be used once while this card is face-up on the field.Super RareGENF-JP016Mainspring Dog EARTH/Beast - Effect/3/1200/900Yu can only activate this effect during your Main Phase. Until the End Phase, this card's level is increased by 2, and it gains 600 ATK. While this card is face-up on the field, this effect can only be activated once.GENF-JP017Mainspring Snail WATER/Aqua - Effect/2/100/2000During your Main Phase, you can select 1 set card on the field and return it to its owner's hand. This effect can only be used once while this card is face-up on the field.RareGENF-JP018 Spearfish Soldier WIND/Sea-Serpent - Effect/4/1700/1100This card gains 100 ATK for each of your removed from play Fish-, Sea-Serpent, or Auqa-Type monster.GENF-JP019 Fly-Fang WIND/Fish - Effect/3/1600/300When this card attacks a Defense Position monster, and its ATK exceeds that monster's DEF, inflict the difference as Battle Damage to your opponent's Life Points. At the end of a Battle Phase this card inflicted Battle Damage to your opponent's Life Points, it is removed from play until your next Standby Phase.GENF-JP020 Sky Oni-Eating Ray WIND/Sea-Serpent - Effect/3/600/300This card can attack your opponent directly. At the end of a Battle Phase this card attacked your opponent directly, it is removed from play until your next Standby Phase.RareGENF-JP021 Air Orca WIND/Sea-Serpent - Effect/3/1400/300Once per turn, activate by