Rohan Kishibe was obtainable for a limited time as a collaboration character in the mobile game Puzzle & Dragons as a free unit in exchange for 5x Event Medal - Black.
岸辺露伴＆ヘブンズ・ドアー
Attributes: 
Rarity: 6★ (Base)
No. 9603
HP
4,509 (Lvl.99)
ATK
3,268 (Lvl.99)
RCV
601 (Lvl.99)
Active Skill: "Heaven's Door"
Changes Water Orbs to Wood Orbs; [2-turn delay]: pierce enemies' damage void for 2 turns
Leader Skill: "Reality."
[Orb move time: 12 sec], ATK increases with 2+ Wood combos, up to 40x; inflicts 1 dmg with 5+ combos, 4x HP for Wood Att.
ヘブンズ・ドアー
Attributes:
Rarity: 7★ (Assist Evolution)
No. 9604
HP
4,509 (Lvl.99)
ATK
3,268 (Lvl.99)
RCV
601 (Lvl.99)
Active Skill: "Write new memories."
Delays enemies' next move for 3 turns; all enemies' Att. change to Water (ignores barriers) for 3 turns
Leader Skill: "N/A"
N/A