TWEWY's endlessly customizable gameplay and immersive storyline make it addictive and satisfying for any kind of gamer.
The storyline is fantastic, intriguing, and well-supported by character development. The game's battle system is innovative, making use of the top and bottom screens simultaneously, but giving players plenty of control over the difficulty. For example, the top screen part of the battle can be set to different levels of automatic play (making it essentially optional if too difficult, which is convenient when it is first introduced and you haven't quite gotten the hang of it yet), and from the menu screen, players can set both their level and their difficulty (of course, you cannot set your character to a higher level than you have earned). The pins, food, and clothing are also great features, allowing you to customize characters' stats, abilities, and attacks to an extreme level because of the many options. Leaving many of these unlockable or attained only by evolution keeps the game from being too easy, but because difficulty settings affect what you obtain from battle, it's simple enough to change them and earn what you need with a few battles.
Other great features the game offers are the post-storyline play, which allow you to replay any given day and do small side quests, and PP earned for time spent /not/ playing. Completing all of a single day's quests unlock more of the story, which is left with several loose ends at the actual end of the game. There's also a mini-game, should you get tired of battling.
That (getting tired of battling) is probably the only real problem with the game, but I've found that battling is refreshed by increasing my difficulty level and then having a friend play the top screen for me, turning it into a simple but satisfying 2-player game.
Add up all of the great things the gameplay has to offer with the fun and unique music, the well-written dialogue and colorful art, and you have a game that really just can't lose.