Dead or Alive Xtreme 2 - Achievements

Kasumi's Lovely Collection 20 points: Gather as many swimsuits as you can with Kasumi.

Make 2 Friends Kasumi 20 points: Gather as many swimsuits as you can with Kasumi.

Make 4 Friends Kasumi 20 points: Gather as many swimsuits as you can with Kasumi.

Make 6 Friends Kasumi 20 points: Gather as many swimsuits as you can with Kasumi.

Kasumi Complete Collection 20 points: Gather as many swimsuits as you can with Kasumi.

Ayane's Adorable Collection20 points: Gather as many swimsuits as you can with Ayane.

Make 2 Friends Ayane 20 points: Gather as many swimsuits as you can with Ayane.

Make 4 Friends Ayane 20 points: Gather as many swimsuits as you can with Ayane.

Make 6 Friends Ayane 20 points: Gather as many swimsuits as you can with Ayane.

Ayane Complete Collection 20 points: Gather as many swimsuits as you can with Ayane.

Hitomi's Fresh Collection 20 points: Gather as many swimsuits as you can with Hitomi.

Make 2 Friends Hitomi 20 points: Gather as many swimsuits as you can with Hitomi.

Make 4 Friends Hitomi 20 points: Gather as many swimsuits as you can with Hitomi.

Make 6 Friends Hitomi 20 points: Gather as many swimsuits as you can with Hitomi.

Hitomi Complete Collection 20 points: Gather as many swimsuits as you can with Hitomi.

Leifang's Idolic Collection 20 points: Gather as many swimsuits as you can with Leifang.

Make 2 Friends Leifang 20 points: Gather as many swimsuits as you can with Leifang.

Make 4 Friends Leifang 20 points: Gather as many swimsuits as you can with Leifang.

Make 6 Friends Leifang 20 points: Gather as many swimsuits as you can with Leifang.

Leifang Complete Collection 20 points: Gather as many swimsuits as you can with Leifang.

Kokoro's Cute Collection 20 points: Gather as many swimsuits as you can with Kokoro.

Make 2 Friends Kokoro 20 points: Gather as many swimsuits as you can with Kokoro.

Make 4 Friends Kokoro 20 points: Gather as many swimsuits as you can with Kokoro.

Make 6 Friends Kokoro 20 points: Gather as many swimsuits as you can with Kokoro.

Kokoro Complete Collection 20 points: Gather as many swimsuits as you can with Kokoro.

Helena's Celebrity Collection 20 points: Gather as many swimsuits as you can with Helena.

Make 2 Friends Helena 20 points: Gather as many swimsuits as you can with Helena.

Make 4 Friends Helena 20 points: Gather as many swimsuits as you can with Helena.

Make 6 Friends Helena 20 points: Gather as many swimsuits as you can with Helena.

Helena Complete Collection 20 points: Gather as many swimsuits as you can with Helena.

Christie's Wild Collection 20 points: Gather as many swimsuits as you can with Christie.

Make 2 Friends Christie 20 points: Gather as many swimsuits as you can with Christie.

Make 4 Friends Christie 20 points: Gather as many swimsuits as you can with Christie.

Make 6 Friends Christie 20 points: Gather as many swimsuits as you can with Christie.

Christie Complete Collection 20 points: Gather as many swimsuits as you can with Christie.

Tina's Dynamite Collection 20 points: Gather as many swimsuits as you can with Tina.

Make 2 Friends Tina 20 points: Gather as many swimsuits as you can with Tina.

Make 4 Friends Tina 20 points: Gather as many swimsuits as you can with Tina.

Make 6 Friends Tina 20 points: Gather as many swimsuits as you can with Tina.

Tina Complete Collection 20 points: Gather as many swimsuits as you can with Tina.

Lisa's Tropical Collection 20 points: Gather as many swimsuits as you can with Lisa.

Make 2 Friends Lisa 20 points: Gather as many swimsuits as you can with Lisa.

Make 4 Friends Lisa 20 points: Gather as many swimsuits as you can with Lisa.

Make 6 Friends Lisa 20 points: Gather as many swimsuits as you can with Lisa.

Lisa Complete Collection 20 points: Gather as many swimsuits as you can with Lisa.

Additionally, there is one secret achievement.

Complete Item Collection 100 pointes: Collect all of the items available in the game.

Bonus songs:
Complete a 14 day vacation with any girl to unlock "How Crazy Are You?" by Meja and "Is This Love" by Bob Marley.

Easy money:
The articles you buy at one of many of Zack's shops can be very expensive. Earning the money is easy in one particular area -- the "Marina Race". Play this in the morning, noon, and night for three days to earn up into the millions of dollars.

You can try to double your money on either blackjack or roulette in the casino. Go for the maximum bet of 1,000 and bet all of your money. If you lose, power off the game and restart it for that day.

Easy Relationship points:
It helps to have all four extra activities Butt Battle, Waterslide, etc.. Go to a vacated area where it is just the two of you. Play a mini-game and let your partner win. Another contributing factor is winning volleyball games. If you lose, your Relationship points will decrease. Note: The Waterslide activity will not increase your Relationship points, because it is a solo mini-game