Two of Kiryu’s Bucket List memories in Like a Dragon: Infinite Wealth with the shared title "Dreams of a Past Life" have Kiryu reminisce on dreams he had where he was the historical figures Miyamoto Musashi and Sakamoto Ryoma. This references two games thought to be non-canonical spin-offs: Ryuu ga Gotoku Kenzan! and Like a Dragon: Ishin!, and suggests them to have actually been Kiryu’s dreams the whole time. This is also notable as Ryuu ga Gotoku Kenzan! has yet to receive an English release.