There's a reason many people consider this one of, if not THE best Sonic game.

The actual good gameplay mechanics in Adventure 1 were brought back and fleshed out better (though I do miss Spin Dash spamming for Speed levels).

This is overall easily the best Sonic game story ever.

The rank system is an actual fair and rewarding challenge (most rankings in Sonic games are too easy)

I'm not always in the mood for Shooting/Emerald Hunting but thankfully replaying individual levels makes it so I dont always have to do em.