The Urbz: Sims in the City (handheld)

The Urbz: Sims in the City is the third Sims game and the sequel of The Sims Bustin' Out. This game is loosely-based on The Sims and ported from the GBA version. However, in this branch of the Sims, an Urb (a version of a Sim in the game) lives and works in a city. The game starts out in the largest tower in all of Miniopolis (Kings Tower, which is all of 5 stories) where a Sim is fired, no matter what it does. From there it must find housing, uncover an evil plot, and save the city from falling into the clutches of a crazy egotistical maniac.

Storyline from Bustin' Out
In the end of The Sims Bustin' Out for GameBoy Advance back in SimValley, a Sim was in a rocket, went up to space, and crashed back to Earth (now in Miniopolis). Now the game starts with an Urb on top of King's Tower near the rocket where the Sim crashed (although it is unknown how the Sim got hired after crashing there from SimValley in The Sims Bustin' Out)

Rep Groups
In The Urbz, there are 4 different groups known as "Rep Groups". After the Urb has been designed, the game asks a series of questions, which decide what Rep Group the Urb will belong in. Each group consists of 4 Urbz, excluding the player, has their own Rep Leader, Trophy, Rep Item and Mission. When all 10 bars of the player's Urb are green, the Sim can talk to the Rep Leader and change groups.

The Streeties
 * This group's leader is Darius. If the player answers the first answer for the first quiz question, they will end up as a Streetie. The group's members consist of Darius, Kris Thistle, Ewan Watahamee, and Crystal. The item for the group is the "Ultimate MP-Dee Stereo System" which allows the player to play any music on the game, including the opening theme. Their rival group are the Richies.

The Nerdies
 * This group's leader is Polly Nomial (referring to "polynomial"). If the player answers "Mad l33t computer skillz" for the first quiz question, this is the group they'll end up in. The Group Item is the "Mad Skillz Cerebal Data Infuser", which will raise one skill point a day. The Nerdies of the game are Polly Nomial, Maximillian Moore, Lincoln Broadsheet and Sue Pirnova. They oppose the Artsies.

The Richies
 * Led by Luther L. Bigbucks, his "followers" consist of Misty Waters, Lily Gates, and Lottie Cash. If the player chooses the 3rd Option on the First Question, money, this is the group they'll end up in and will also end up with the group's item, a "Sensory Deprivation Chamber", which fills up all motives. Their rivals are the Streeties.

The Artsies
 * The Artsy leader is the Carnie, Roxanna Moxie. If the final option of the first quiz question is filled, the Urb will belong in this group with Roxanna Moxie, Cannonball Coleman, Pritchard Locksley and Theresa Bullhorn. The Urb will also end up with a "Bod Mod Changer" which allows the player to change their Sim's skin and hair color. Their rivals are the Nerdies.

Though the Rep Groups are one of the game's main focuses, the Detective, Dusty Hogg, Gramma Hattie, and Mamba Loa do not belong to any rep group.

Returning Sims from The Sims Bustin' Out
Since the game is sequel to the handheld version The Sims Bustin' Out it features a few cast members from SimValley. Despite their re-appearances, some have no recollection of ever appearing in the previous game therefore they are possibly reincarnations.
 * Chet R. Chase (You cannot socialize with him, he only sells food)
 * Daddy Bigbucks
 * Det. Dan D. Mann
 * Dusty Hogg
 * Ephram Earl
 * Giuseppi Mezzoalto
 * Lottie Cash
 * Maximilian Moore
 * Misty Waters
 * Olde Salty
 * Phoebe Twiddle (previously an NPC who serves as a cashier in SimValley at Nicki Knack's Bric-A-Brac trinket shop on The Sims Bustin' Out)

Xizzles
Xizzles are mini-skills. Xizzles can be bought with 3 Xizzle Beads, which can be obtained by talking to Urbz and getting their Rel. Points to 75 or above, or finding them around Miniopolis, where you can buy 1 Xizzle. A Xizzle can be like "Livin' Large" which earns you 20% more at Jobs/Minigames, or they could be like "Nemesis", of which everyone's relationship points will go up 6 but someone else's down to minus 100. In the CAS Quiz, all questions except for the first determine which Xizzles will be available first to your Sim. Other Xizzles can be obtained after completing Goal 2 in Mission 3 (Daddy Bigbucks & The Xizzle Factory).

GBA and DS differences
This is the differences between the GBA and DS versions Some Xizzles might be in a different place then it was in the GBA version (For example: In Water's Gym the Xizzle was found in the plants in the GBA version and in the DS version the Xizzle is found in the locker) Urbz might be in a different area then they were in the GBA version (For expample: In the GBA version at 6:00 PM Sue Pirnova is in the Miniopolis University and in the DS version at 6:00 PM Sue Pirnova might be at Splicer Island instead.
 * Loading times
 * In the GBA version: The game takes 20 seconds to get to The Urbz: Sims in the city screen
 * In the DS version: The game takes nearly 50 seconds to get to The Urbz: Sims in the city screen
 * Main Menu controls
 * In the GBA version: The Control Pad is used to select items in the main menu and the A button is used to enter
 * In the DS version: The Control pad and the record on the Touch Screen is used to select menus in the main menu, the A button and the check mark is used to enter, The B button and the X button (Not on your DS) on the Touch Screen is used to go back
 * Menu controls
 * In the GBA version: The Control pad was used to highlight items, the L & R buttons was used to cycle between menus, the A button was to enter and the B button was to go back/exit menus
 * In the DS version: The Touch Screen is used to navigate items and the menus have to be tapped on the Touch Screen to enter
 * Create an Urb (CAU)
 * In the GBA version: The on screen keyboard is used to enter your Urb's name, the D-pad is used to navigate, the A button is used to enter and the B button is used to go back, The L/R buttons is used to change Hi CAPS to low caps
 * In the DS version:
 * Mission 3-2 Differences for GBA & DS
 * In the GBA version: Mission 3-2 is called Batten Down the Hatches
 * In the DS version: Mission 3-2 is called Daddy Bigbucks & The Xizzle Factory
 * Number of saves
 * In the GBA version: You can have up to 4 saves
 * In the DS version: You can have up to 2 saves
 * Special Minigames
 * In the GBA version: The GBA has a special Minigame named Yar Hey! Bombard!
 * In the DS version: The DS has a special Minigame named Sushi Sensei.
 * To unlock the Moon Base
 * In the GBA version: Link 2 GBAs to unlock the Moon Base
 * In the DS version: Get a Green Meteorite to unlock the Moon Base
 * Hidden Xizzles
 * Urbz' Times

Trivia

 * A reference to The Sims Bustin' Out for handheld is made in the game, on the roof of King's Tower a rocket is wedged into the tower's globe sculpture.