Namco Bandai has shared a first trailer clip for Pac-Man & Galaga Dimensions. Have a look here:

The focus of the trailer is on the two main included games, Pac-Man Tilt and Galaga 3D Impact, but there are also brief glimpses at the other four recently announced games, which were detailed here. You'll find screens of those other games below:

PAC-MAN TILT

GALAGA 3D IMPACT

PAC-MAN CHAMPIONSHIP EDITION

GALAGA LEGIONS

PAC-MAN

GALAGA

RANKINGS & ACHIEVEMNETS

All included games are compatible with worldwide online score rankings.

Additionally, Pac-Man, Galaga, Legions and Championship Edition appear to have somewhat of an achievement system in place. As you play, you'll see a set of question mark panels on the lower screen. These list achievements like "get over 4 million points" and "Eat six keys in one play."