Play a certain number of multiplayer matches to unlock these items:

5 matches: Missile Launcher
10 matches: Missile Launcher only mode
15 matches: Peppy Hare as Playable
20 matches: Gattling Guns
30 matches: Crown Capture Mode
40 matches: Titania Desert Stage
50 matches: Sure-Shot Scuffle mode
60 matches: Simple Map 4
75 matches: Fire burst Pods
90 matches: Booster Packs
110 matches: Booster Packs Brawl mode
130 matches: Zones Sea Base stage
150 matches: Wolfen
170 matches: Predator Rockets
200 matches: Cluster Bombs
230 matches: Booster Pack and Launcher Tilt Mode
260 matches: Stage: Simple Map 5