- Bonus ball games
Successfully complete the indicated task in Planet Superstars mode to unlock the corresponding ball game:

Space Harrier	Successfully complete 'Get A High Realize!' in the 'Space Harrier' stage.
Puyo Pop Fever	Successfully complete 'Get A High Realize!' in the 'Puyo Puyo Fever' stage.
Virtua Squad	Successfully complete 'Get A High Realize!' in the 'Virtua Squad' stage.

- Achievements
Do the following things to obtain the corresponding Gamerscore points:

10 Points
Space Channel 5	Watch a match on TV.
Begining Grid	Be victorious in with all 8 begining characters.
Play Ball	Be victorious in your first match.
Surf the Net	Be victorious in a Match on Xbox Live.
20 Points
OutRun	Run a total of 10 kilometers / 6 miles.
To The Max	Hit 3 Max serves sequentially.
After Burner	Hit a serve over 100mph / 160kph.
Puyo Puyo!	Clear a 20 Puyo combo.
Sega Rally	Hit a 40 shot rally.
Let's Get Friendly	Be victorious in 10 Xbox Live Player matches.
Top Ranker	Be victorious in 10 Xbox Live Ranked matches.
Supercop!	Destroy Kong without being hit.
Super Sonic	Acquire 7 Chaos Emeralds in one game.
Mouse Mania!	Rescue 500 ChuChus over time.
Top Gun	Hit 100 aces.
Dragon Slayer!	Destroy the Final Squilla in under 20 seconds.
Master Tagger!	Clear a Tag without missing a shot.
Climb the Ladder	Be victorious in the final stage in Tournament mode.
Zombie Hunter!	Hit an 8 zombie combo.
Top of the Tree	Be victorious in a Tournament on Xbox Live.
Seeing Stars	Enter Superstar mode 10 times in a match.
Cameo Appearance	Hit a Sega court cameo.
Pot Black!	Clear 4 Trick Shots in one game.
30 Points
Realize Attacker	Unlock all Ball Games.
Magical Sound Shower	Unlock all Secret Music Tracks.
Party Time	Play each type of Ball Game Multiplayer.
Clear them All	Clear all characters in Singles matches.
Original Teams	Clear all the classic Doubles pairs.
Full Roster	Unlock all Secret Characters.
Secret Stage	Clear the hidden stage in Tournament mode.
Ball Buddies	Be victorious in 5 Xbox Live Doubles matches.
Play the Field	Unlock all Secret Courts.
Swinging Report Show	Become a TV Superstar.

20 Points
Thunderhead	Unlock Gilius. His brother was killed by Death Adder.
Jan-Ken-Pon!	Unlock Alex Kidd. For seven years he lived on Mount Eternal studying the ancient art of Shellcore.
Nightmare	Unlock Reala. Only in your wildest dreams.
Sonic Rival!	Unlock Shadow. I am the world's Ultimate Life Form.
Stuck To Your Blades	Unlock Gum, An original member of the GGs.
Rose	Unlock Amy Rose. There's no hiding from her, so pink and upbeat. Such a tough cookie and so sweet.
Piece of Cake	Unlock Pudding. Get your coverage from Channel 42.
Eei-Eei-Poo!	Unlock MeeMee. A stylish monkey who is adored by all other monkeys.

- Bonus stages
Successfully complete the indicated task in Planet Superstars mode to unlock the corresponding stage:

Space Harrier	Successfully complete Tournament Singles in the 'Space Channel 5' or 'Virtua Squad' stage.
Golden Axe	Successfully complete 'Speed Rings' in the 'Sonic The Hedgehog' stage.
Alex Kidd	Successfully complete 'Get A High Realize!' in the 'Space Harrier' stage.
NiGHTS	Successfully complete 'Monkey Ball Keep Up' in the 'Super Monkey Ball' stage.
Outrun	Successfully complete 'Hit Justice Shots' in the 'Virtua Squad' stage.
Puyo Pop Fever	Successfully complete 'Doubles Match' in the 'Super Monkey Ball' stage.
Virtua Squad	Successfully complete 'Hit The Big Zombies!' in the 'Curien Mansion' stage.

- Bonus characters
Successfully complete the indicated task in Planet Superstars mode to unlock the corresponding character:

Alex Kidd	Successfully complete Tournament Singles in the 'Alex Kidd' stage.
Reala	Successfully complete Mission 2 in the 'NiGHTS' stage.
Gilius Thunderhead	Successfully complete Mission 1 in the 'Golden Axe' stage.
Gum	Successfully complete Mission 12 in the 'Jet Set Radio' stage.
MeeMee	Successfully complete Mission 8 in the 'Super Monkey Ball' stage.
Amy Rose	Successfully complete Mission 2 in the 'Sonic The Hedgehog' stage.
Pudding	Successfully complete Mission 1 in the 'Space Channel 5' stage.
Shadow the Hedgehog	Successfully complete Mission 14 in the 'Sonic The Hedgehog' stage.

- Bonus courts
Successfully complete the indicated task in Planet Superstars mode to unlock the corresponding court:

Outrun	Successfully complete Exhibition Doubles in the 'Outrun' stage.
Puyo Pop	Unknown.
Golden Axe	Successfully complete all Super Monkey Ball missions.
NIGHTS	Successfully complete all Jet Set Radio missions.
Sonic The Hedgehog	Successfully complete Exhibition Singles in the 'Sonic the Hedgehog' stage.

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