Shin Megami Tensei: Devil Survivor Overclocked is a remake of the DS game. Shin Megami Tensei: Devil Survivor. It's part of a series where a lot of elements are borrowed from past games, but do no necessarily mean that it is a prequel, sequel, or spinoff.
If you have never played SMT: Devil Survivor for the DS, I recommend playing this game. One of its major pluses is the story line. The story line is mature and unique. Facing a lock-down in Tokyo, the protagonist and his friends discover secrets hidden from the population while carrying out very difficult decisions. There are a number of unique endings for this game as well, depending on your interactions with individuals as well as some of your decisions. The characters you meet through the adventure are unique and believable. Some of the undergo through some developments through the harshness of the situation as well. The eighth day additions expands the plot and content by 25% (if I had to estimate) and also continue the developments of the characters. Though some of the eighth day character interactions leave you feeling satisfied, most are less convincing.
The "battle" portion of the game is turn-based. It is a tactical style (think Final Fantasy Tactics), where each character has a party of two demons and themselves fighting an opponent, or achieving a goal. You move around a map, where a variety of obstacles or enemies may be strewn in the chaotic backdrop. When you "attack" an opponent character, you don't just choose a skill or whack them. Instead, you go into another screen where you take turns skirmishing with the opponent. It is turn based (think Pokemon style) when engaging an opponent. Missions and goals vary, but are generally the same thing, ie. defeat all enemies, but don't let character x die.
The graphics are solid. Though not much of an upgrade from its DS version, it is still nice on the eyes. Unfortunately, the extent of 3D-graphics is very lacking. For most of the part, you'll only notice it on the title-screen, or if your doing certain out-of battle actions or cut-scenes. It does make use of the full upper screen however. The sprites could have been upgraded a little better. For most part, you will leave your 3D function off though for this game. If you are looking for a great game to test your 3DS's 3D-capabilities, this is not it.
In terms of sound, the shining factor here is the excellent voice acting. For most part, the voice acting is solid, though not the best out there. For a hand-held game, it hits the target though, and you will be listening to the dialogue through the entire ordeal. Unfortunately, you have to press a button to continue their dialogue, so when they speak longer sentences, there may be a awkward pause in speech, and ruins the flow of the dialogue. The sound effects are decent, but not mind-blowing.
Now if you own or played the original Devil Survivor, I still urge you to at least rent the game. They've added enough content to at least warrant a rental. They've extend most of the story endings with the eighth day, so now you can find out what the protagonist and his friends did after each ending. The voice acting isn't the major pulling point, but that extended plot, as well as increased range of demons to discover (150 in total versus 130.) There are is also an accomplishment/challenge rewarder they call "Titles" which are only revealed after you clear the game. They titles are necessary for making each consecutive save game+ easier, as they allow you to acquire "points" in which you can use towards certain buffs in the New Game+. There are a few small new missions, but that's about it.
I recently created a saved game + (Cleared Data) after completing one of the eighth days, and added or updated almost the entire review. 8/29/2011