Namco Museum Battle Collection is an assortment of Namco’s more popular arcade classics brought to the PSP. There are 17 original arcade games that include:

Pac-Man
Ms. Pac-Man
Galaga
Galaxian
Rally-X
New Rally-X
Dig Dug
Xevious
Bosconian
Motos
Mappy
Grobda
Rolling Thunder
The Tower of Druaga
Dig Dug II
Dragon Buster
King & Balloon

Also included are 4 updated classics that include:

Pac-Man Arrangement
Galaga Arrangement
Rally-X Arrangement

These updated classics feature new graphics with the same game-play with new features added.

Namco Museum Battle Collection allows game sharing in original mode (classic arcade games) which allows you to send the first level of 10 of the original titles to another PSP without the other PSP needing to have a disc inserted. Some of the original games have options available that were in the original arcade games like adjusting the score at which you gain another life, the number of lives you start off with, sound tests, screen tests and even the ability to rotate the screen horizontally or vertically. Some other options include the ability to use the analog stick fire missiles (Galaga and Galaxian), open doors (Mappy), use sword (Tower of Druaga) etc. and the ability to turn off screen refinement to recreate the graphics used in the original games.

Wireless multi-player features joining up to 3 of your friends in a versus match in Pac-Man Arrangement, Galaga Arrangement or New Rally-X Arrangement and play in co-op mode in Dig Dug Arrangement.