Great mix of Genesis-era 'Sonic' and 'Ristar' platforming here, without the main drawback in Sonic of getting hit while going full speed and losing all momentum. There's also more variety in playstyles between Lilac, Carol, and Milla, compared to Sonic, Tails, and Knuckles. Bosses are a solid challenge as well, and the card collectibles are hidden well and worthwhile to go find.

Just make sure you play Classic mode. Ignore the story at all costs.