Disgaea: Hour of Darkness' insides are just as quirky as its packaging. You take the role of Laharl, a young demon prince who has just awoken from a two-year nap to discover that his father is dead and the Netherworld is in chaos. This initially sets him out on a quest to regain his place as king of the Netherworld, but along the way he'll have to deal with obstacles such as a labor dispute, an empty-headed angel, a backstabbing servant and other unique challenges. For anyone expecting the typical melodramatic fair which has become commonplace in today's RPGs, you'll find that
Disgaea is the farthest thing from it. This is easily one of Atlus' most humorous and well-done text-conversions to date. The number of in-jokes in the game runs the range from crass, sickout humor to wry political satire.
For the most part, the game plays almost like your standard tactical RPG. You start off with a small army - a demon prince (Laharl), his vassal (Etna) and an army of three demon penguins (yes, demon penguins) called Prinnies. The board layout is standard, but the gameplay is actually rather unique. You begin a battle with none of your characters on the field, only a blue portal. You click on the portal to see your army and summon members into battle. At any time during the battle (unless under special circumstances) you can bring a soldier back into the portal and deploy new ones. Some battles have limited the number of characters allowed on the field at one time, adding to the game's strategic element.
Army creation is very well done and is very deep. When you want to make a new soldier, you have to go to the Dark Assembly, which serves as the Senate for the Netherworld. You can then petition to make a new soldier out of the available classes. You can choose to make humanoid classes (fighter, cleric, mage, etc) or Monster classes (ghoul, ghost, demon, dragon, etc). Once you select the type of soldier you want to make, you have to spend Mana (which you get from defeating enemies) to create their 'Competency Level', which determines any bonuses or stats of the class. These range from 'Good-for-nothing' to 'Expert'. The thing is, if you want to make the really competent soldiers, you have to get permission from the Dark Assembly. Depending on who is requesting the soldier (anyone in your army can), the new soldier will become their apprentice, which helps determine stats, abilities and other things. As things progress, you can eventually learn to combine classes, similar to the class progression in Final Fantasy: Tactics. This leads to a mind-boggling 150 classes/combos for use in the game. The Dark Assembly keeper even suggests that it could be possible to build an uber-class that possesses every ability of ever class.
Politics is a big part of raising your army, gaining money, weapons. In addition to providing you with troops, the Dark Assembly also deals with giving you extra money, building new classes, getting better weapons. For example, say you want to unlock the Medium-grade weapons for purchase. First of all, you have to have a character petition the Dark Assembly for the right to do that. Once you ask, they vote. Each petition has a set 'Pass' number, which determines how many 'Yes' or 'No' votes you need. Each character in your army also has an influence rating, which changes based on actions and deeds (as well as rank). Kicking ass in battle (which basically translates to their Level) gets this number up as does taking promotion exams (which determine your character's rank). As if this wasn't enough, you can also bribe senators to vote for you, or you can use force and challenge them to a fight. Both have downsides. If you bribe someone and they don't like it, you won't get the votes and you'll be out money. If you challenge someone with force, you could not only die, but if you defeat them they'll come back in the next vote and really not like you.
Weapons progression is also very deep. Your character gains skill levels based on what weapons their stats better suit them for. However, you can have a swordsman use guns, but he'll gain skill levels slower than if he was using a sword. All weapons also have stats (duh!), but they can be progressed in a very interesting way. In the castle, there's a portal called 'Item World' that allows you to enter an unequipped weapon. This opens up a multi-tiered battle (like the Dark World in Onimusha). As you progress through levels, you can find 'Coaches', who will submit to you once you defeat them. This will then grant special stats/powers to the weapon. Once under your control, you can then transport them between weapons (provided you haven't reached the weapon's 'Population Limit'). Depending on how well you do in the Item World, the weapon will also increase in level, making it more powerful.