[1] The player must guide Spark through a series of differently themed levels containing an assortment of obstacles, robot enemies, and boss fights.

[2][3] Differences in his campaign include less health, altered level design, new boss fights, and a unique move set.

Spark subsequently travels across the planet to fight the mobilizing robot army, learning of their plans for world domination.

[7] After defeating Fark in a final duel, Spark ascends up Megaraph and encounters Freom sitting atop a throne of machinery.

[9][11] Daneluz wanted to create a Sonic game since he was a child,[10] and was able to familiarize himself with the engine due to its accessibility to those lacking programming experience.

He found that initial reactions to Spark's design were poor and attempted to redesign him, but concluded that he just needed to be refined by a different artist.

Daneluz intended for Spark the Electric Jester to be different from Sonic games, recounting the gameplay as initially slow, similar to Mega Man, and more mechanically simple than the final release.

[6][20] Daneluz claimed that a "majority of the game's initial development" was complete by the campaign's launch and planned to allocate funds towards the sound design and soundtrack.

[21] The music was composed by Andy Tunstall, Falk Au Yeong, Funk Fiction (Pejman Roozbeh), and James Landino, all of whom had previously collaborated on Daneluz's fangames,[10][22] as well as Michael Staple and Paul Bethers.

[16]: 20:09–20:41  Aside from the Sonic series, Spark the Electric Jester's biggest influences were Kirby Super Star and Mega Man X games, particularly ones in which Zero is playable.

[17] Spark the Electric Jester was originally projected for an early 2016 launch on Windows and OS X platforms,[21] but would instead be released on April 10, 2017.

[31] Amr Al-Aaser of Rock Paper Shotgun and Jed Whitaker of Destructoid felt that Spark the Electric Jester was successful in incorporating and iterating on its 16-bit-era inspirations.

While he characterized the first stage as "ugly" and "disjointed", Whitaker felt the game became better as he progressed, and summarized the level design as "great".

[2] Whitaker found Fark's campaign to be more difficult than Spark's, which he felt was lacking in challenge, and appreciated the game's amount of content.

[2][3] It was described as feel-good and "an absolute jam" by Al-Aaser,[2] and Whitaker believed it was of equal quality to the music found in 16-bit Sonic games.

[34] Spark the Electric Jester 3 was released for the Nintendo Switch on July 25, 2024, in North America, and in Europe and Australia on August 1, 2024.