The ending is idiot.....
You gotta play the game some three times to get everithing, what makes the replay be bad because no one in the world can play a rpg more than one time... and the sound sucks. Still, the game is cool! The gameplay it's ok but you won't really enjoy battling.....like every rpg though.
One thing that's pretty cool it's that you can choose what Sonic says so you can be nice, ignorant, agree, disagree, you can show off yourself or even be rude, making some funny scenes, especially with Amy Rose, making her angry it's fun!!!!
I reccomend buying this game (even if I didn't.......emulators some time are good).