Here is an overview of the game, via its Steam page:

Continuing directly from where Spark the Electric Jester 2 left off, join Spark on his mission to overthrow his rival once again. Blaze through fast action packed stages and experience a new and improved combat system.

The gameplay is a mix of action and platforming in a clever way, taking elements from many games of both genres, you are able to find powers that change the way you play, enjoy great freedom of movement, discover many different ways to beat each stage, and ways to do it faster.

Spark the Electric Jester 3 is in development for PC (Steam). Consoles (“hopefully all of them”) will follow at a later date.

Watch the trailer below.