This hack made By MainMemory based on Sonic 3 and Knuckles.This hack was made by locating the code for the Drop Dash within the PC version of Sonic Mania, decompiling it, translating that code to 68000, and inserting it into S3K.

Sonic 3 & Knuckles: Pro Survivor it's an palette and layout hack; the point on this one it's to have a extra difficult and hard layout (though fair), with some improved gimmicks.In the last year, I wasn't very happy with the state of the hack, so this one I decided to give it a better effort and polish everything with my best effort (with new content, of course)!Unfortunately, it's still just a demo and not a full version. So the 5 only levels available are:Angel Island Zone, Hydrocity Zone Act 1, Ice Cap Zone, Flying Battery Zone and Sandopolis Zone (unfortunately too, AIZ and ICZ2 isn't ready yet for Knuckles, so I hope you understand).Also, has a new Main Menu and a New mode (up to you unlock), and in the future will have more features.Now let's go to the credits.CreditsHack Author, Layout and Level Design:*NeoFusionBox Team

Sonic 3 & Knuckles: The Challenges is an award-winning hack of Sonic 3 & Knuckles by ColinC10. In this hack the player must complete various levels from S3&K, which newly feature specific challenges to complete, e.g. collecting a certain number of rings or protecting Tails from danger. Completing challenges unlocks more challenges, and players' progress is automatically saved to SRAM.