To make Lucas Lee easier,  grab one of the gray tripod things before you go into the fight. If you avoid the skater dudes that come in about halfway through the fight, it'll all be over in a few seconds.

Note: Two controllers are required. First, complete the first level Evil Ex. Play story mode as the character who you want to gain the money. Use a second controller to have a guest join who has some money. Enter a store and have the guest give the your player all of their money. Press Start to return to the map and then exit the game. The game will not save the guest's stats so the guest will retain their money. Repeat this as desired.

Activate the following cheats by pressing the corresponding sequences of buttons at the specified screens:

CHEAT FUNCTION - CHEAT CODE/SCREEN
Both players can select same character - Press DOWN, R1, UP, L1, TRIANGLE, CIRCLE at the title screen.
Blood mode - Press X, CIRCLE, X, SQUARE, X, CIRCLE(2) at the title screen.
Boss Rush mode - Press RIGHT(2), CIRCLE, R1, RIGHT(2), CIRCLE, R1 at the title screen.
Scott's Power Of Love Sword - Press SQUARE(3), X, CIRCLE, X, TRIANGLE at the title screen.
Sound test - Press L1(3), R1(3), L1, R1 at the "Leaderboards" screen.
Coin sprites changed to animal sprites - Press UP(2), DOWN(2), UP(4) at the title screen.
Zombie mode - Press DOWN, UP, RIGHT, DOWN, UP, RIGHT, DOWN, UP, RIGHT(3) at the title screen.
Sacrifice life for $50 - Hold L2 + R2 and press UP(2), DOWN(2), Left, RIGHT, Left, RIGHT, CIRCLE, X at the title screen.
Hearts appear when hitting opponent - Press X, CIRCLE, X, CIRCLE, SQUARE, X, CIRCLE, , CIRCLE at the title screen.

Unlock the following characters by performing the corresponding tasks:

CHARACTER - HOW TO UNLOCK
Nega-Scott - Complete the game as Kim, Stills, Ramona, and Scott.
Mr. Chau - When see Mr. Chau on a random stage, go to that stage to fight him. Defeat him to unlock him.

Go to the shopping district in the Frozen Suburbs and find the ramp that leads down down to an underpass. Go to the star painted on the rear wall. A cement panel will open, allowing you to access a shop that sells expensive powerful items.

At the start of level 5, "The Party", move backwards to the door with the star to access a secret Subspace Highway. You will collect money and exit the highway past the halfway point of the level.

Pay the $504.25 fine at the video store to unlock the corresponding items for purchase for $4.95. Note: After leaving the store you will have to pay the fine again to reenter.

ITEM - DESCRIPTION
The Mystical Head - Extra life, maximum of nine.
Seven Shaolin Masters - Gives +100 XP, +10 DEF, +10 SPD, +10 WP, +10 STR.
Alien vs. T-Rex - Gives +20 STR.
Alone And Disturbed - Gives +1,500 experience points.
I Love Your Boyfriend - Gives +320 XP, +15 DEF, +15 WP.

When playing as Ramona Flowers, hold TRIANGLE for about 5 seconds and release to pull various weapons out of her purse. It costs 20 Gut Points per use but gives you anything from a durable brick to a deadly katana, viable proof that it is indeed bottomless.