Spark

Spark is a neon blue kirby that appears through all Books except Book 4.

Spark is a very dank puffball and his lenny face ( ͡° ͜ʖ ͡° ) is used most of the time when 2 characters seem to be in a relationship

Spark's main weapon are his blasters though he switches from weapon to weapon such as the meowmere and rainbow S.D.M.G

The Secrets Of Kells
Spark appears in The Secrets Of Kells Chapter 4: Halls Of Darkness starting at Episode 2: The Curse From Jade-Walker.

Spore
Spark appears in Drendermen's Spore Series, however he is only a cameo, and he mostly gets killed off. one episode of the series was about him known as "The Many Deaths Of Spark".