Battle Cats - All Advent Boss Stages VS 1 Unit

Hi, in today's video, I've beaten all advent boss stages with 1 single cat unit every time, but it excludes Kappy Jr. and Wanwan. But now I have to say that Kappy IS possible, but it's based on an extreme RNG and luck, never gotten him under 16%. Don't use this as a guide in any way. My units are very high leveled, and the ways I've beaten the stages aren't effective.

Cat Units:
Fishman Cat - 50+48 (5/5 NP)
Roe Cat - 50+37 (5/5 NP)
Ramen Cat - 50+80 (5/5 NP)
Elemental Duelist Cat - 50+80 (5/5 NP)
Balrog Cat - 50+10 (5/5 NP)
Goemon Cat - 50+80 (5/5 NP)
Chill Cat - 50+80 (4/5 NP)

Music Used:
➤ 【ゼルダの伝説 大地の汽笛】フィールド～ゲームオーバーを弾いてみた
   • 【ゼルダの伝説 大地の汽笛】フィールド～ゲームオーバーを弾いてみた  

➤【東方原曲】風神録「ネイティブフェイス」(Native Faith) 【高音質】.mp4
   • 【東方原曲】風神録「ネイティブフェイス」(Native Faith) 【高...