The basic idea of this ROM hack is to take a basic Sonic 1 and make it record all of your results for comparison and competition. Every Zone Act and Special Stage is individually selectable for play, allowing you to record your results in Score, Time and Rings, with the addition of Monitors, Badniks and Hits for Zone Acts only. In addition to this, there are two extra Challenges. They are the Full Game Playthrough challenge, and the Boss Attack challenge. Full Game Playthrough starts you at Green Hill Zone Act 1, and makes you play through the whole game from start to finish. Boss Attack takes you to a specific level designed to make you play through all 6 bosses of the game, one after the other. As well as these, there are 50 Achievements to get as well, some being easy to achieve and others more difficult. To tie everything together is the first use of Retro Channel, allowing you to upload your results and achievements and compare them with other Sonic Retro users, producing leaderboards for each individual result per Zone Act/Special Stage/Challenge. List of 50 Achievements to try and unlock: Nice Try Not This Time Get Blue Balls Enthusiastic Accumulator Committed Collector Dedicated Treasurer Riches Before Diamonds Getting Greedy Acquired Fortune Quick Offense Lightning Onslaught Badnik Genocide Flying Eliminator Aerial Executioner Airborne Assassin Quadruplets Sextuplets Full House Addicted to the Box TV Fanatic Couch Potato Empty Wallet Careful Elusion Artful Dodger Clumsy Hedgehog Bumbling Idiot Favourite Punching Bag Speed of Sound Mach 3 Speed of Light Fashionably Late Marathon Winner Snail’s Pace Completionist Emerald Expert So Close Yet So Far Air Walker Double Rebound Getting Dizzy At The Last Second Dead Ended Walking The Higher Path Skyscraping Completed Codex Never-ending Fun Aqua Lung Pinball Wizard Total Avoidance Scrambled Eggs And Then, It Got Even Hotter