Sonic After the Sequel is a 2013 platform video game created by Brazilian student Felipe Daneluz (LakeFeperd).

Like its predecessor, After the Sequel stars Sonic the Hedgehog and his sidekick Tails in a quest to retrieve the Chaos Emeralds from Doctor Eggman.

[5] The game takes place in seven levels, known as zones,[6] each divided into three acts followed by a boss fight with Doctor Eggman.

[7] These zones are designed for fast-paced gameplay,[2] featuring typical Sonic obstacles such as bottomless pits and vertical loops.

[14] Beginning from this point,[1] After the Sequel depicts Sonic and Tails noticing a forested island and deciding to make a landing and explore.

In Parhelion Peak, the game's snow zone, Sonic and Tails notice a feather float down from the sky.

[3] The music composition and recording were handled by underground musicians Falk Au Yeong, Funk Fiction, Andy Tunstall,[3] James Landino, DJ Max-E, Mr. Lange, and Li Xiao'an.

[5] Daneluz had not made plans to incorporate original music until Falk approached him requesting collaboration on the game.

Funk Fiction has claimed that the music spans more than twenty genres and was influenced by rock, jazz, disco, and trip hop and the soundtracks of game franchises like Sonic, Donkey Kong, and Kirby.

This version features improved physics, the addition of the drop dash from Sonic Mania, and a new final boss.

This version also introduces more improved physics and performance fixes, and retains the drop dash from Sonic After the Sequel DX.

Tony Ponce of Destructoid summarized it as "quite the fun little gem that keeps the Genesis-era Sonic spirit alive".

Ponce called it "the best music ever" and "simply indescribable", opining that it raised an already high-quality product "to god tier".

[26] Similarly, the Red Bull staff called the music "absolutely stunning", likening it to gaming soundtracks of the early 1990s.

[2] As of March 2014, the trilogy had been downloaded 120,000 times—an unusually high number for fangames—as compared to the 640,000 copies of the official game Sonic Lost World (also released in 2013) sold on the Wii U by the same time.