Often regarded by fans as "the best Sonic 3D title ever!" Sonic Adventure 2 is a must buy for anyone who loves Sonic, or good platforming in general. A nice story told through 3 different "arcs" with fun gameplay and lots of replaybility, this game is truly one of the best Sonic games ever.
+40-60 hours of gameplay
+3 diffrent types of gameplay each with fun mechanics
+30 different enormous stages to explore (each with 5 missions to keep you playing)
+Great soundtrack with memorable tracks (Live & Learn, City Escape, Sonic's Theme :D)
+CHAO RAISING (onion headed mutant/animal babies racing and beating the crap out of each other!!!)
+Secrets and hidden goodies EVERYWHERE!!!
+Multiplayer is fun (for the most part)
-Repetitive and boring kart mini-game (you have to play it twice in the story, plus another 11 times in missions and mini games if you want all 180 emblem -_-)
-Some glitches here and there
-Lip syncing is messed up during cutscenes and voice acting sucks sometimes (Not Eggman, he sounds AWESOME :3)
-Questionable development decisions (WHY are the bounce bracelet and light speed dash activated with the same button!!!??? Why can the radar only detect ONE emerald at a time when it could detect ALL in SA1??? >:0)
*In conclusion. should you buy this game? ABSOLUTELY YES!!! For only $9.99 this game is definitely worth every penny!!!! It's fun, challenging, will keep you busy for quite a while, and will show you what the Sonic franchise is capable of making.