The chao garden alone makes it a 4/5 but the game is the best sonic has ever been. Even crazy gadget!

The soundtrack is actually hot sex. Aquatic mine will literally remove the nut straight from your quivering personhood.
Play Sonic Adventure 2 Battle you weenies.

It's cinema.

This game re-invented the wheel for metroid-vania. The combat is an insane dichotomy of very simple limited offensive options across incredibly tight and fast mobility options. It's simple. It's complicated. The world is vast and you are small. Take on god himself! You tiny tiny thing.