Disclaimer: This is my first post on this forum; I am using some of the info from the Retro Wiki but will try to type it in my own words instead of just copying. Sonic 3 & Knuckles is my favorite game when it comes to the first 4 games (1, 2, CD, 3&K) and when I found out about Sonic 3 Complete from the dead man Cybershell from his "Best Way To Play Sonic 3" video in 2016, I fell in love with this hack! When I looked up some more info online and found the Retro Wiki(S3C Link), that's what started my journey to joining this forum! Sonic 3 Complete delivers more than just adding 3 & Knuckles together on the same cartridge, it fixes some problems that came with splitting up the game, makes Tails more of an involved character (new intro, “Continue?” screen, etc.), adds the music changes from the PC release S&K Collection and a lot more that there is a big list of every change that has happened on the Retro Wiki (Here's The List). I made this review because I really wanted to address the amount of effort that went into this hack. They fixed the sprites for when Knuckles is fighting the Flying Battery Act 2 Boss, fIxed the Super/Hyper sprites to now show Sonic's change in form, added Tails’ flight without a second player, made it so that Super forms have a second button to push for transformation by default, added the Super Peel-Out move from CD and more features that you can change in the Options menu. My favorite changes are the removal of speed caps and the ability to do a peel-out, shield, or both. I am very glad that added that to the game because it makes it a lot more fun for me to try and speedrun the game. I am also glad that they added Battery Night since Flying Battery was supposed to come after Carnival Night Zone and before IceCap Zone with a cutscene to give a new explanation of how Sonic got the snowboard(Now a door that Sonic broke off the FB stage). I could go on and on describing the different changes that came with this hack but that would basically become a list and there is already one made on the Wiki. Congrats to Tiddles, Neo, That One Jig, ValleyBell, Flamewing and Hayate and everyone else apart of the project for making such a great hack that combined the two halves of my favorite game and added much more to it in a big bundle of awesomeness. Thank You Very Much!