Unlimited Money trick...
	Various Achievements...

For this you need to find a cave, but it needs to be a cave with allot of crystals. Now remove or destroy the rare crystals and the save it. How go back and open/reload the save so it starts to re-spawn everything. You can repeat this many many times to get allot of money after you sell those items to merchants.

Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock
A Dark Omen (15 points)	Defeat your first Villainous party.
A Super Warrior Is Born (30 points)	Acquire 100 Super Attacks or Masteries in the Super Attack Skill Tree.
Bye-Bye, Buu (70 points)	Complete the Majin Buu Saga.
Can't Touch This (15 points)	Get 50 instant victories on enemies.
Demolition Artist (15 points)	Destroy 10 boulders blocking caves.
Do-Gooder (15 points)	Complete 10 sub stories.
Down with the Demon Realm! (90 points)	Win the battle against Mira.
Dragon Ball Master (0 points)	Obtain all achievements.
Earth's New Champion (30 points)	Complete the Cell Saga.
Emperor No More (30 points)	Complete the Frieza Saga.
Evil All Around (15 points)	Defeat 20 Villainous parties.
Excavator (15 points)	Destroy a boulder blocking a cave.
Flashy Finish (15 points)	Win a battle with a Super Finish.
Former Foe (15 points)	Win the simulation battle against Piccolo.
Fountain of Knowledge (70 points)	Unlock 400 entries in the Z Encyclopedia.
Get out of My Head and Turn into My Car (15 points)	Build a hovercar.
Getting Greedy (15 points)	Summon Shenron 5 times from the Dragon Ball menu to make a wish.
Heavy Medal (30 points)	Collect 100 D Medals.
Helping Hand (15 points)	Complete a sub story.
Highly Skilled (15 points)	Acquire 50 Super Attacks or Masteries in the Super Attack Skill Tree.
Let the Building Begin! (15 points)	Build a machine part.
Medal Madness (15 points)	Collect 10 D Medals.
Newfound Power (15 points)	Acquire a Super Attack or Mastery in the Super Attack Skill Tree.
Not Worth My Time (15 points)	Get an instant victory on an enemy.
Only the Finest (15 points)	Make 5 full-course meals.
Purging the Plague (30 points)	Defeat 30 Villainous parties.
Push It to the Limit (15 points)	Complete 10 challenges at a Training Grounds location with any character.
Robot Rider (15 points)	Build a Bipedal Robo Walker.
Shenron's Favorite (30 points)	Summon Shenron 10 times from the Dragon Ball menu to make a wish.
Tell Me More (15 points)	Unlock an entry in the Z Encyclopedia.
The Power of Friendship (15 points)	Use 10 Super Attack Assists.
The Voice in My Head (15 points)	Receive a telepathic message from King Kai.
There's Nothing Like a Home-Cooked Meal! (15 points)	Make a full-course meal.
Thirsty for Knowledge (30 points)	Unlock 200 entries in the Z Encyclopedia.
Tough Enough (80 points)	Complete a Level 10 challenge in the Training Room.
Turtle School Legend (30 points)	Complete 50 Turtle School training challenges and report to Master Roshi.
Turtle School Master (15 points)	Complete 20 Turtle School training challenges and report to Master Roshi.
Turtle School Trainee (15 points)	Complete a Turtle School training challenge and report to Master Roshi.
Who Needs a Phone? (15 points)	Receive 20 telepathic messages from King Kai.
Wish Maker (15 points)	Summon Shenron from the Dragon Ball menu to make a wish.
Worse For Wear (30 points)	Complete the Saiyan Saga.
Z Combo Zealot (15 points)	Perform 10 Z Combos.