Yo puedo responderte a la pregunta, he buscado por google y hay unas 4 o 5 versiones diferentes del juego:
Aqui las tienes:
Kenji Endo the creator of D for the 3DO, Saturn and PlayStation brings us D2 which was originally a M2 (3DO 2) game until the hardware was scrapped by Matsushita (Panasonic). Unlike the first D saga this game is in full real time and even though this was one of the first Dreamcast games to ever start being produced back in early 1998 or maybe even as far back as 1997, it still looks great now in 2004.
D2 takes place in the snowy mountains of Canada after the plain that our hereon, Lara was on crashed. Not all is as it would expect to be though. The plain was brought down by some mysterious powers that have changed the inhabitance of the snowy mountains in to mutant human/creatures. Lara must find out what is happening and the reason of why she is there (She's suffering from amnesia, you see).
You will not be disappointed with this game in any department. The voice acting is great (NOT IN THE US VERSION), the background music which was composed by Kenji Endo is fit for a feature film. Camera work is amazing putting Shenmue to shame at times. Finally, the story is so intriguing that you'll find yourself lost with in it.
Get the Japanese version of D2 now or if you prefer the bad English dubbed version with censored scenes then go for the US version. The version shown above is the normal print which is in fact harder to find than the limited 1st print covers.
This game was one of the 1st games to be ever made for the Dreamcast but don't let that put you off, it's still a great survival horror action adventure game. The box shown is part of the 3 limited edition 1st prints titled Eclipse, Hope and Bliss (Shown above)
This game was one of the 1st games to be ever made for the Dreamcast but don't let that put you off, it's still a great survival horror action adventure game spreading across 4 GDROMS !!!! The box shown is part of the 3 limited edition 1st prints titled Eclipse (shown here), Hope and Bliss. The cover scan to this one turned out so well, much better than the others. Inside the special limited packs is a transparent 2000 AD Calendar
This game was one of the 1st games to be ever made for the Dreamcast but don't let that put you off, it's still a great survival horror action adventure game spreading across 4 GDROMS !!!! The box shown is part of the 3 limited edition 1st prints titled Eclipse, Hope (Shown above) and Bliss. The cover scan to this one didn't turn out so well thanks to the cover being a metallic light blue colour. Inside the special limited packs is a transparent 2000 AD Calendar

At first I just passed D2 Shock off as being a pre-view of the released game D2 that comes with some copies of Real Sound on the Dreamcast (I've heard from a few people with Real Sound who said that they never received the D2 Shock disc.) Not until the other day did I realize that I was wrong. I had just finished D2 (Japanese uncensored version) when I decided to put on the D2 Shock disc for no reason what so ever. Then it hit me. The version of D2 Shock is in fact an early build of the game, a beta if you will. The amount of detail that differs from the final game is amazing. The title screen is different, allowing the D2 logo to be zoomed as well as spun. The character textures are far lower. Kimberly has pointed breasts and a square bottom. The sound quality is also no where near as good as the final. The snow bike section allows you to have a first person view plus a back view that aren't in the final game. There are many other differences too that will be covered in a future Segagaga Domain feature on D2 Shock Vs D2 Final release.
Resumiendo Un release o beta es lo que es el D2 Shock, el que aparece con la cara de la prota, es la edición normal, las otras 3 con los planetas son: Versión Felicidad, Versión Eclipse y Versión Esperanza