Unlockable Characters
| Unlockable | How to Unlock |
|---|---|
| Amy Rose | Complete Mission #2 in Sonic The Hedgehog's World |
| Gilius | Complete Mission #1 in Golden Axe's World |
| Gum | Complete Mission #12 in Jet Grind Radio's World |
| Meemee | Complete Mission #8 in Super Monkey Ball's World |
| Pudding | Complete Mission #1 in Space Channel 5's World |
| Reala | Complete Mission #2 in NiGHTs' World |
| Shadow The Hedgehog | Complete Mission #14 in Sonic The Hedgehog's World |
Unlockable Ball Games
| Unlockable | How to Unlock |
|---|---|
| Puyo Pop Fever | Complete "Get A High Score!" on the "Puyo Puyo Fever" stage. |
| Space Harrier | Complete "Get A High Score!" in the "Space Harrier" stage. |
| Virtua Squad | Complete "Get A High Score!" on the "Virtua Squad" stage. |
Unlockable Courts
| Unlockable | How to Unlock |
|---|---|
| Golden Axe | Complete all Super Monkey Ball missions. |
| NiGHTS | Complete "Doubles Match" in the NiGHTS stage. |
| OutRun | Complete "Doubles Match" in the OutRun stage. |
| Sonic The Hedgehog | Complete "Singles Match" in the Sonic the Hedgehog stage. |
Unlockable Stages
| Unlockable | How to Unlock |
|---|---|
| Alex Kidd | Complete "Get A High Score!" in the "Space Harrier" stage. |
| Golden Axe | Complete "Speed Rings" in the Sonic the Hedgehog stage. |
| NiGHTS | Complete "Monkey Ball Keep Up" in the Super Monkey Ball stage. |
| OutRun | Complete "Hit Justice Shots" in the "Virtua Squad" stage. |
| Puyo Pop Fever | Complete "Doubles Match" in the Super Monkey Ball stage. |
| Space Harrier | Complete Tournament Singles in the "Space Channel 5" or "Virtua Squad" stage. |
| Virtua Squad | Complete "Hit The Big Zombies!" in the "Curien Mansion" stage. |
Achievements
| Unlockable | How to Unlock |
|---|---|
| After Burner (20) | Hit a serve over 100mph / 160kph |
| Ball Buddies (30) | Win 5 Xbox LIVE Doubles matches |
| Beat them All (30) | Beat all characters in Singles matches |
| Cameo Appearance (20) | Hit a SEGA court cameo |
| Challenges 101 (30) | Complete all Challenges in all SEGA games (Rank A) |
| Classic Complete (20) | Complete all Challenges in one SEGA game (Rank A) |
| Climb the Ladder (20) | Win the final stage in Tournament mode |
| Dragon Slayer! (20) | Destroy the Final Squilla in under 20 seconds! |
| Full Roster (30) | Unlock all Secret Characters |
| Let's Get Friendly (20) | Win 10 Xbox LIVE Player matches |
| Magical Sound Shower (30) | Unlock all Secret Music Tracks |
| Master Tagger! (20) | Clear a Tag without missing a shot! |
| Mouse Mania! (20) | Rescue 500 ChuChus over time! |
| Original Teams (30) | Beat all the classic Doubles pairs |
| OutRun (20) | Run a total of 10 kilometers / 6 miles. |
| Party Time (30) | Play each type of Ball Game Multiplayertime! |
| Play Ball (10) | Win your first match |
| Play the Field (30) | Unlock all Secret Courts |
| Pot Black! (20) | Clear 4 Trick Shots in one game! |
| Puyo Puyo! (20) | Clear a 20 Puyo combo! |
| Score Attacker (30) | Unlock all Ball Games |
| Secret Stage (30) | Beat the hidden stage in Tournament mode |
| Seeing Stars (20) | Enter Superstar mode 10 times in a match |
| SEGA Rally (20) | Hit a 40 shot rallyHit a 40 shot rally |
| Space Channel 5 (10) | Watch a match on TV |
| Starting Grid (10) | Win with all 8 starting characters |
| Step into SEGA World (10) | Complete your first Challenge (Rank A) |
| Super Sonic (20) | Collect 7 Chaos Emeralds in one game! |
| Supercop! (20) | Destroy Kong without being hit! |
| Surf the Net (10) | Win a Match on Xbox LIVE |
| Swinging Report Show (30) | Become a TV Superstar |
| To be this good takes AGES (60) | Complete all Challenges in all SEGA games (Rank AAA) |
| To The Max (20) | Hit 3 Max serves in a row |
| Top Gun (20) | Hit 100 aces |
| Top of the Tree (20) | Win a Tournament on Xbox LIVE |
| Top Ranker (20) | Win 10 Xbox LIVE Ranked matches |
| Zombie Hunter! (20) | Hit an 8 zombie combo! |