Virtua Tennis 4 Cheats - Xbox 360

Unlock Theron Tenniel / Vicky Barney
On the player selection screen, select "LOAD" to bring up the Custom Player Selection Screen. From there, press [LB] to select Theron Tenniel or [RB] to select Vicky Barney.

Achievements
Complete each achievement to receive the allotted gamerscore:

10 Wins! (10) - Win 10 matches.
20 Awards! (30) - Earn 20 awards.
100 Stars! (20) - Earn 100 stars.
Accomplished (30) - Become: Accomplished.
All-Out Player (10) - Hit a diving shot.
Doubles Beginner (10) - Clear a stage in Arcade Mode Doubles.
Doubles Grand Slammer (20) - Clear Doubles Mode.
Endless Rally! (20) - Sustain a rally for 30 shots.
Exhibitionist (10) - Play 10 Exhibition Matches.
Famous (20) - Become: Famous.
First Online Victory (20) - Win a Ranked Match.
Good Partner (20) - Acquire 3 doubles partners.
Grand Slammer (20) - Clear Singles Mode.
Arcade Beginner (10) - Clear a stage in Arcade Mode.
Arcade Hero (20) - Achieve a player score of 7,770,000 points.
Arcade Star (10) - Achieve a player score of 5,000,000 points.
Balloon Popper (10) - Pop 30 balloons in Practice Mode.
Best Stroker (20) - Win 100 points with ground strokes.
Big Hitter (40) - Hit 250 MAX Serves.
Bomb Fiend (10) - Detonate 20 bombs in the opponent's court in Bomb Match.
Crowd Pleaser (10) - Hit a running shot.
Great King (30) - Defeat the King in Arcade Mode Singles.
Great Sniper (10) - Achieve a 5x Combo in Clay Shooting.
Hat Tricker (20) - Score 3 goals in a row in Ace Striker.
Loving It! (20) - Win 10 Love games.
Marathon Runner (20) - Run 42km (26mi).
Medal Collector (20) - Earn three Points Won medals.
Moneybags (30) - Collect 1,000 coins in Coin Match.
Mother Hen (20) - Deliver at least 10 chicks simultaneously to their mother in Egg Collector.
My Style (10) - Acquire a play style.
Rocket Server (10) - Hit a serve at 200km/h (124,3mph) or faster.
Shopaholic (20) - Purchase 50 types of items in the Kit Catalogue.
Super Player (40) - Hit 100 super shots.
Swing Machine (20) - Swing 5,000 times.
Tycoon (20) - Earn 1,000,000 in total prize money.
Online Debut (10) - Play online with a customised character.
Online Master (50) - Reach Rank A.
Online Streak (20) - Win three consecutive Ranked Matches.
Online Veteran (30) - Log 10 hours of online play time.
Poker Face (30) - Get 10 royal straight flushes in Royal Poker.
Power Smash! (50) - Hit 250 smashes.
Pushing it to the MAX! (20) - Hit four consecutive MAX serves.
Ultimate Star (50) - Become: Ultimate Star.
Volley Master (20) - Win 100 points with volleys.
Wall Whiz (10) - Hit a wall 5 times with the ball in one Wall Match.
Wind Master (20) - Pop 3 balloons in one Wind Match.
World Debut (10) - Participate in the World Tour.
World Tour Cleared! (20) - Clear the game.

Unlock Duke
Clear arcade mode without dropping a game.