End of the Millenium

Chaz Ashley is a young bounty hunter and partner to the famous Alys Brangwin. Together they have been sent to investigate strange happenings in the basement of the Piata Academy. Little do they realize that they are beginning a journey that will not only pit them against the forces of Zio and his dark masters but will cross the reaches of space and time.
Gameplay

Techniques
Techniques are essentially magic attacks that your characters can use by spending Technique Points (TP). These range from your standard elemental attacks (Foi, Wat, etc) to effects like gravity (Nagra) or healing (Sar). Most characters have some magical ability, except for the android characters Demi and Wren.
Skills
Every character has a set of abilities called skills. Each skill has a fixed number of uses (that increases as you level up). Skills are only refreshed at save points and inns (or Alys' house) and are thus it's better to save them until you need them rather than wasting them to kill easier enemies.Combos
Some spells and abilities can combine to create devastating attacks. For example, if you cast Foi, Wat, and Tsu with three different characters (spells that only affect one enemy each) they will combine to form the spell Triblaster, a more powerful attack that will hit all enemies! There are several combo attacks in the game, and in many cases they involve mixing an elemental spell with a technique so that the elemental spell will hit all enemies.Macros
Battles in Phantasy Star IV occur in rounds. At the beginning of each round you will give each character in your party a command that will generally be executed in order of fastest character to slowest (including enemies). However, in order to do some of the more powerful combo attacks certain skills or techniques must be used in the correct order. To do this Phantasy Star IV includes the ability to setup macros: lists of skills and techniques that will occur in the given order. These can be used as shortcuts (for example, if you want all characters to attack) or to setup powerful combo attacks. They are a very handy addition and really help streamline the combat; Macros help with some of the repetition that is found through the genre.Vehicles
An important aspect of Phantasy Star IV is the vehicles. There are several vehicles ranging from a basic tank to a high tech hovercraft and an ancient starship. Each of the landbased vehicles features a main weapon and several skills that it can use. This is a crucial benefit, because the monsters that you fight while in the vehicles are generally much tougher than monsters you'd fight while not in a vehicle. Also, throughout the game there are points that you cannot pass until you have a certain vehicle. These form some of the main plot points of the game as you search for a way across the obstacle.Presentation

Another defining element of the presentation is the "trail" of characters. Each character in your party will follow the leader around in a trail of up to five characters long (the maximum party size). This means that you see a sprite for each character as you travel around and gives the feel of having a party rather than just a leader and some followers.
Trivia
- In the North American version every player character's name is exactly 4 letters long (Chaz, Alys, Rune, Gryz, etc) regardless of race or even planet of origin.
- Phantasy Star IV was originally planned for the Sega CD, and would have first person dungeons a la the original Phantasy Star. However, due to the unsuccessful nature of the Sega CD, development moved to the Genesis and the first person dungeons were scrapped for a more traditional overhead view.