get the namco beta from the hong kong PSN store & play it on ps3 xmb & when you log into home you unlock

Pac-Man:
Get a Cherry
Get a Strawberry
Get to Level 2
Get all 4 ghosts in one power pellet (1600)

Galaga:
Beat Stage 1
Beat Stage 2
Get a Dual Fighter (let one of the yellow guys capture a ship then get it back by killing yellow guy)
Get Your Ship Captured & Destroy It

Dig-Dug:
Get to Stage 2
Get the Carrot on the 1st Stage (I think you have to crush monster with rock to make this appear)
Get the Turnip on the 2nd Stage
Crush 2 monsters with the Same Rock

Xevious:
Complete Area 1
Complete Area 2

The other 2 need you to get a special hidden flag/thing
you do that buy using your bombs to uncover them , there is a flag in the river on the far left side, just to the left of a road in the water




unlocks One hat "guy 5 T-shorts one pare of slacks"  "girl 5 T-shorts one pare of skirt"  5 arcade games for your space, one chair, & one dig dug mesh

Oh yeah the games you win, only work in home if you are using the account you downloaded them from