You can reveal 1 other "Gunkan" card in your hand; Special Summon this card from your hand, then apply the following effect based on the revealed card.
● "Gunkan Suship Shari": You can Special Summon the revealed monster.
● Other: Place the revealed card on the bottom of the Deck.
You can target 1 "Gunkan" monster you control: Change its Level to 4 or 5, then you can add 1 "Gunkan Suship Shari" from your Deck to your hand.
You can only use each effect of "Gunkan Suship Uni" once per turn.