Go to the Options menu and change Zack's voice to Japanese.
Skip To Ending
Once you've finished the game once, you will be able to skip to the end of the two weeks with any girl. Go to the Hotel or Poolside menu and select "Leave Tomorrow" to end the game after that night.
Start With More Items
To begin with a ton of items, give a bunch of gifts to a specific lady. Then finish the current game and start a new one (with your old save) and play as the woman you gave gifts to. Whatever she keeps will be in her Item inventory when you begin a game with her.
Unlock Swimsuits For Exhibition
To have more swimsuit choices in Exhibition Mode, buy or acquire suits in the Zack's Island game. Whatever you gain in that game will be available for the Exhibition beach.
Ending bonus
Successfully complete the game. When you start a new game, you can immediately advance to the end. Select the "Leave Tomorrow" option at the hotel or pool menu to skip to the ending.
Ending sequence
Wait for the credits to end to see a extra FMV sequence featuring Zack and the remains of his island.
Bonus music tracks
You can unlock two hidden music tracks in the game: "How Crazy Are You" (by Meja) and "Is This Love" (by Bob Marley). To obtain them, play through the game once. When you resume that saved game file, these two hidden songs will be available in the Radio Station.
Disable commentary
Enter to the options menu, then change Zack's language to Japanese.
Keeping on good terms with your partner
Give your partner their favorite gift in color, type, hobby, or their nationality (one or two gifts). When you wake up in the morning, check the music notes around their head. If only one music note floats up, you are not doing well with your partner. If it is two music notes, then their enthusiasm is pretty good. Three music notes indicates that both of you are getting along very well.
Selecting a partner
Choose your partners wisely. Try to partner up with girls that have a lot of power; for example, Tina or Hitomi. Then, when you are receiving the ball during game play, try to have them make the first hit upon return, in which case you set them up for a spike using B. Very often, the other players, even if they are blocking, will be knocked down by their enormous spikes.
Moving your partner
If you do not like the position in which your partner is standing during a match, you can move them by using the Right Analog-stick.
Soundtrack change
You can change the music playing at anytime by pressing Black (advance to next track) or White (repeat current track).
Force replay
Hold L immediately after someone scores.
Lock view
When viewing a "Gravure" movie or another camera-controlled angle, click the Right Analog-stick to lock and unlock the desired angle.
Click the Left Analog-stick to lock the view controlled by it in its current position. Zoom to a desired magnification then press X to lock it at that setting.
Good serve
In order to receive 1000 points for each serve, make sure that your calibration is adjusted so that it is about 30% (one third of the way from the left of the bar), then press A firmly to throw the ball in the air. Press A firmly again just before the player is about to make contact with the ball. This is very helpful during game play, as you can still get some points even if you lose your match.
Scoring
When your partner sets you up for a spike, there is an easier way to score. Hold Left Analog-stick Left to make the ball fly closer to the net, so it is harder for the other team to recover. If they try to block your spike, use the same method only use Tap and they will almost never get it.
Toss wisely
While playing the a volleyball game, it is often useful to toss the ball to your partner who may spike it and score a point. However, if you toss the ball to your partner while she is back half way or more from the net, she may try and spike the ball hard and hit the net, causing the other team to get a point.
Control ball during spike
Press Left during the spike to spike it short; Right to spike it deep; Up to spike it high (to the top of the screen); or Down to spike it low (to the bottom of the screen). You can do this in a combo (for example, press Down/Right to spike it low and deep.
Preventing cheap shots
When you are playing a match, and the opposing team spikes the ball so hard that your player receives the ball but hits the ground and the ball flies back over the net, about 90% of the time the opposing team is going to spike that ball at where you are laying. Use the Right Analog-stick to move your partner to the spot where you were standing, so they can bounce it to you while you are getting up, or hit the ball back over the net.
Finding an easy match
When looking at the selectable courses, look at the profiles of the two characters you are playing against. They seem to follow the same ones from Exhibition mode, where if her head is turned slightly, it indicates that she is less willing to play with the person she is paired with. This often leads to a lot of missed volleys and spikes on their part, making for an easier match and a chance to win more money.
Detecting bad emotions on the court
During the first few matches with a new teammate, she will compliment you on a good serve or spike. The moment your partner stops giving you kudos, it is time to cheer her up as best as possible. If it is someone you can do without, this is not that important, but otherwise you will need to buy your friend something she will really like to stay in good terms with her. If none of the shops have exactly what you want, go to the Sports Shop and buy a moderately expensive swimsuit. That usually does the trick and usually there is something that she really likes in the shops the next day. Remember, when the two of you break up she will not accept any more gifts from you until the vacation's over.
