This Mario game is possibly the greatest in the series yet.
Sound: The music is spot-on. Great battle music, great area music, and more. Great SFX, as well.
Graphics: TTYD gives the Paper Mario series a more papery look, and makes use of this by giving Mario the ability to roll up, to turn into a paper airplane or boat, or turn sideways to become virtually invisible, as mentioned before.
Replay Value: Play over and over again, as there are so many choices to make! The dialogue is different depending on what partner you choose to travel with, you can choose to make a special file specifically for one use, such as battling in the Glitz Pit or collecting Star Pieces, and much more!
Endless Gaming: Unlike the first Paper Mario, you now have the option to play for as long as you like! And with so much to do, you might actually need the extra gaming time to complete certain side-quests!
Conclusion: Overall, this installment in the Paper Mario series beats the original and the sequel by a respectable margin.