Sonic CD

Sonic CD is a 1993 side-scrolling platformer from Sega, originally exclusive to the Sega CD add-on, and for years one of the hardest entries in the classic lineup to play properly. This 2012 PC release, ported by BlitWorks and built on Christian Whitehead's Retro Engine, is the definitive way to experience it. Native widescreen, 60 FPS special stages, higher-quality FMV cutscenes, and a choice between the original Sonic CD spin-dash or the faster Sonic 2 variant all come bundled in. It is not emulation. It is a ground-up rebuild, and it shows. The hook is time travel, and it works differently from anything else in the classic series. Each of the seven zones has four versions tied to four time periods: past, present, good future, and bad future. Every one of those versions carries its own level geometry, visuals, and music. To shift eras, you hit a Past or Future signpost and then sustain high speed for several seconds, which is trickier than it sounds because the stage design in Sonic CD is deliberately cluttered with springs, bumpers, and obstacles, especially in zones like Collision Chaos and the labyrinthine Metallic Madness. Reaching a good future in each zone requires traveling to the past and destroying a hidden robot generator. Ignore them and the future looks like a industrial wasteland. Get them all and the same zone transforms into a bright, enemy-sparse paradise. It's a compact but genuinely clever system that rewards exploration over pure speed. The special stages flip things further. Finish an act with 50 or more rings and you access a pseudo-3D UFO-hunt stage where you chase and destroy six ships before a timer expires. Collecting all seven Time Stones is an alternate route to the good ending and skips the generator hunt entirely. There is also a Time Attack mode for replaying any completed act, plus a D.A. Garden for listening to unlocked zone music, which is worth mentioning because the soundtrack situation is a real talking point. The remaster ships with both the Japanese and North American soundtracks, and they are genuinely different in character. The Japanese version is upbeat and pop-driven; the US version sits somewhere between ambient techno and late-90s electronic. Neither is wrong. Both have standout tracks. Where the game divides opinion is level design. Sonic CD does not prioritize the open, speed-boosting corridors of Sonic 2 or 3. The stages are dense and sometimes chaotic, and the bosses run short, often wrapping up in a handful of hits. Players who want tight, momentum-driven platforming may feel the layout works against them. The physics are also locked to 60 FPS, so machines that dip below that will feel sluggish. The game was also delisted from Steam ahead of the Sonic Origins compilation in 2022, so access via a key reseller or secondary source is the reality for new buyers now. What Sonic CD does exceptionally well is density per minute. A casual run clears in two to three hours, but chasing good futures across all zones, hunting Time Stones, and running time trials pushes that up considerably without overstaying its welcome. It introduced Amy Rose and Metal Sonic to the franchise, and the Stardust Speedway boss race against Metal Sonic remains one of the most memorable set pieces in any 2D Sonic game. If the stage design clicks with you, it really clicks. Alex, Scout Team