Last week saw the tussle between Wii Fit and Wii Play escalate with shifting positions: Nintendo’s flagship exercise product dropped out of first place and bowed to its Wii Remote and software bundled brother, Wii Play. This week Wii Fit has fought back, reclaiming the first-place crown in the overall Australian game charts according to data trackers GfK Australia. After a brief stint at the top of the world, Wii Play was this week demoted to second spot.

Other big movers and shakers include Sony’s PlayStation 3-exclusive title, Infamous, moving up two spots into sixth place, while Harry Potter and the Half Blood Prince for the Wii and PlayStation 2 took out the fifth and ninth positions respectively. Aside from those minor changes, the top 10 remains mostly unchanged from the previous week.

In the PC charts, Bohemia Interactive's ultrarealistic wargame Arma II has made its debut in spot five, while EA's Sims 3 cash cow continues to track well, spending another week at the summit of the top 10 PC games chart.

All sales stats, including console-by-console breakdowns, can be found below:

Top 10 Full-Priced Games
1. Wii Fit, Wii
2. Wii Play bundle, Wii
3. Mario Kart Wii, Wii
4. The Sims 3, PC
5. Harry Potter and the Half-Blood Prince, Wii
6. inFamous, PlayStation 3
7. Fight Night Round 4, PlayStation 3
8. Club Penguin: Elite Penguin Force, Nintendo DS
9. Harry Potter and the Half-Blood Prince, PlayStation 2
10. Fight Night Round 4, Xbox 360

Top 10 PS3 Games (over A$60)
1. inFamous
2. Fight Night Round 4
3. Call of Duty 4: Modern Warfare GOTY
4. Prototype
5. Harry Potter and the Half-Blood Prince
6. UFC 2009 Undisputed
7. Call of Duty: World at War
8. Call of Juarez: Bound in Blood
9. Tiger Woods PGA Tour 10
10. Transformers: Revenge of the Fallen

Top 10 Xbox 360 Games (over A$50)
1. Fight Night Round 4
2. Call of Duty 4: Modern Warfare GOTY
3. Prototype
4. Harry Potter and the Half-Blood Prince
5. UFC 2009 Undisputed
6. Guitar Hero World Tour bundle
7. Call of Duty: World at War
8. Transformers: Revenge of the Fallen
9. Gears of War 2
10. Grand Theft Auto IV

Top 10 Wii Games (over A$50)
1. Wii Fit
2. Wii Play bundle
3. Mario Kart Wii
4. Harry Potter and the Half-Blood Prince
5. Super Smash Bros. Brawl
6. Ea Sports Active
7. Guitar Hero World Tour bundle
8. Guitar Hero World Tour super bundle
9. Grand Slam Tennis bundle
10. The House of the Dead: Overkill

Top 10 PC Games (over A$20)
1. The Sims 3
2. World of Warcraft: Wrath of the Lich King
3. World of Warcraft Battlechest
4. The Sims 2: Double Deluxe
5. Arma II
6. Call of Duty 4: Modern Warfare
7. Age of Empires III
8. Call of Duty: World at War
9. Age of Empires III: The Asian Dynasties
10. Spore Galactic Adventures

Top 10 Nintendo DS Games (over A$40)
1. Club Penguin: Elite Penguin Force
2. Pokemon Platinum
3. Harry Potter and the Half-Blood Prince
4. Mario Kart DS
5. Rhythm Heaven
6. New Super Mario Bros.
7. Mario & Sonic at the Olympic Games
8. Mario Party DS
9. Super Mario 64
10. Transformers: Revenge of the Fallen Autobots

Top 10 PS2 Games (over A$50)
1. Harry Potter and the Half-Blood Prince
2. Guitar Hero World Tour super bundle
3. Need for Speed Undercover
4. Guitar Hero III: Legends of Rock bundle
5. Guitar Hero World Tour super bundle
6. Buzz! Brain of Oz
7. Guitar Hero: Greatest Hits
8. Disney Sing it! High School Musical 3
9. Call of Duty: World at War
10. Guitar Hero: Metallica

Top 10 PSP games (over A$40)
1. Harry Potter and the Half-Blood Prince
2. Monster Hunter Freedom Unite
3. Resistance: Retribution
4. FIFA Soccer 09
5. Crisis Core: Final Fantasy VII Platinum
6. Lego Batman
7. Medal of Honor Heroes 2
8. Need for Speed Undercover
9. Buzz! Brainbender
10. Tiger Woods PGA Tour 10

All data supplied by GfK Australia.