Santa or Satan!? is the sixth stage in Jingle Cat Bell.
- Infinite Those Guys spawn after 0 seconds0f, delay 0.67~4 seconds20f~120f.
- Infinite Doge Darks spawn after 0 seconds0f, delay 4~20 seconds120f~600f.
- 1 Dark Emperor Santa spawns as the boss after 0 seconds0f.
Doge Darks should be your money source. Kill them and try to time in your Cats in a Box to chip Dark Emperor Satan's health down. If you don't have Cats in a Box, Lion Cat and Crazed Giraffe Cat are your best alternatives. If you have Wrestling Cat, she can also help make this stage a lot easier.
As a side note, make sure to kill the peons with the Cat Cannon before sending out your Awakened Bahamut. Otherwise, you would risk him being perma-frozen to death.