Incredible, incredible game. The active experience is Classic Sonic played to its full potential thanks to the vibrant artwork and funky music, and unlike Before/After the Sequel or Time Twisted it actually manages to successfully recreate the physics from the Genesis trilogy. No random spots of tryhard edge as often shows up in other fangames either, just pure, uninterrupted Sonic fun; Captivating with the confidence in its visual design, characters and cinematic platforming levels.

The level design isn't flawless since it can be a bit too inactive at times (though it is also worth acknowledging that 2D Sonic expects you to replay it a minimum of 3+ times to feel out the level pathing), but compared to a lot of other Sonic fangames it still feels natural, both in levels and physics. This series lives and dies by the physics, so that was such a welcome surprise. Because Sonic isn't a block platformer like Mario or Kirby, but rather about a streamlined interaction with slopes and gameplay fluency (a 'pinball platformer), Sonic's 2D games are really the sum of their parts where if one element is even slightly out of whack it throws off the whole gameplay experience. You could have a super solid fangame but then see that Sonic accelerates a touch too fast or falls to quickly and that's enough to compromise it. But Fallen Star was shockingly high quality across the board.