This game went beyond poor and into broken gameplay. The difficulty curve switches insanely between no challenge to hair-rendingly difficult with no warning whatsoever, and with so very few checkpoints (no boss or mini-boss checkpoints whatsoever), when you die you have to start again from the beginning. If you want a Sonic game that shouldn't be flushed down the toilet I suggest checking out Sonic Adventure II Battle. It's an oldie but a goodie, and a league above anything this sad, pathetic game can provide. Sega ought to be truly ashamed of themselves for this one.