Complete Collection
The term "kanzenban", used to denote a collection's completeness, is a perfect description of Umihara Kawase DS. Featuring both the original Super Famicom game as well as the PlayStation sequel, Shun, it is a perfect bundle of the series' titles.
The SFC game is practially the same as the original, down to the "5 minute rule" code, with some added options. The screen has been cropped from 256x224 to 256x192, but it hardly hurts the experience. The music has been remixed, and the playlist shuffled about a bit, but other than that it's a perfect 1:1 copy.
Shun is the repackaged "Second Edition" with a few extra levels. The game is largely identical to the PSX original, but a new "DS Route" features some more fields (very hard ones at that), while touching up a few of the existing ones. Since it runs in 3D, the game creators were nice enough to provide a "zoom" feature: you can play with the full sized picture, cropped from 320x224, or scale it down to the DS's resolution for maximum visibility range, at the expense of loss of graphic legacy.
The game also features an illustration/sound gallery, where individual pieces of artwork and music can be unlocked by performing certain tasks in the games (read: similar to achievements), as well as a Fish Encyclopedia, where you can find bios on every enemy you've defeated in Shun.
Replay functionality is fully present, and saved replays can be sent to other game cards via local wireless.
The definitive version of Umihara Kawase on a portable game system, and a great way to get your hands on a fantastic series without having to spend too much.