Anyone with a DS should certainly check this game out.
As the title of the game implies, there is a fair bit of time travel featured in the game. In fact, you'll be traveling through time on several occasions, and for most of the game, you'll be traveling with Baby Mario and Luigi. You'll only be able to control either Mario and Luigi, or Baby Mario and Luigi once at a time, but you can switch the control anytime you like (for most of the portion of the game). Fortunately though, you'll be able to just simply carry the babies on Mario and Luigi's back (piggy back!).
Although there are some new characters, and there is a lot of time traveling going on, the core story is still somewhat the same. Princess Peach has been kidnapped, and now you have to go save her. But an alien race gets caught up in the mix, and all sorts of things happen. It’s a typical Mario story line, but still interesting enough.
Eventually, both young and old Mario Bros. learn new abilities. You'll need to utilize all of these abilities to get through the game. Above all, these features add a good amount of depth to the game, as they can be used for things that they were not initially designed for e.g Baby Mario's hammer can be used to stun enemies. In true RPG tradition, the Mario Bros. will be able to level up after they have gained the proper amount of experience from winning battles. You'll also be able to attach them with badges and different clothes to enhance some of their stats. By gaining levels and attaching badges and clothes, you'll be able to enhance stats like attack, speed, defense and ect. You'll be able to notice the difference a lot of the time after you level up ect.
Mario and Luigi: Partners in Time is a fantastic looking game. The 2D graphics are very colorful and vibrant. This just proves that a game doesn't have to be 3D to look good. The games visual effects look great, and the animation is very smooth. The sound is also compliments the graphics well. The tunes mainly consist of the regular upbeat Mario beat found in most Mario games, but if the sound gets a little annoying, you can always just switch it off.
Mario and Luigi: Partners in Time is just an overall rock solid package. The original game was great, and in many respects, this game is just as good, if not better. Although the sense of humor (although still funny) isn't as fresh as it was in the original, Partners in Time is still has a great sense of humor, and helps to make this game a joy to play. Anyone with a DS should certainly check this game out, and its another great reason for those still deciding if they want a DS to get one.