Board Thread:General Discussion/@comment-729047-20150123163548/@comment-24659969-20150123165129

Kuu has lower attack from Bahamut, however since uber rare cats can be leveled up past max lv 30, it allows more growth thus ended up stronger. After all Kuu got slightly better attack animation speed.

Bahamut is special cat which you can unlock by clearing the story mode. 7 basic cats then Titan >>> Valkyrie >>> Bahamut. After you beat the final story mode boss (white bun bun teacher), Bahamut can be unlocked under special cats tier. Since special cats tier never appeared in any gacha then it wont be possible to max+ level unless you hack. That is why most special cats start with strong stats.

As kuu vs Bahamut atk power, Kuu has 2.3k atk base level, Bahamut has 5k. Level up both to max then Kuu has 63180 atk vs Bahamut 85k atk. Then to level up past max, you can only do it by obtaining kuu from gacha. Which means you have to obtain kuu 21 times for 30+20 level (1 initial unlock, level up by XP to 30, then level up max+ using another 20 kuu from gacha) then kuu will have more atk than bahamut.