Geometry Wars: Galaxies (DS, Wii) might feature the addition of stages and bosses to the popular Geometry Wars: Retro Evolved gameplay, but apparently, the bottom line is not about progression. It's still all about the high scores.

That's what Roger Carpenter, Sierra Entertainment's producer for Geometry Wars: Galaxies, revealed in a recent interview with Modojo. "It's all about score still," said Carpenter. "With the different battles we're just introducing a huge variety into how the game delivers fun."

Carpenter also talked a bit about how the team behind Geometry Wars: Galaxies handled the addition of saving and the game's currency system without lessening the difficulty. Here's Carpenter's explanation:

It's quite well publicized now but we've created a Galaxy, full of solar systems and planets. Each planet is an infinitely playable battle, equivalent to the original Retro Evolved if you like. Saving happens every time a game state changes, usually at the end of a battle or when you get a high score.

The currency system in the game determines how the game unlocks before you, so difficulty is handled through that. You can replay any battle as many times as you like, thats part of the Geometry Wars formula.

If you're worried about save points on a short journey or such like with the DS, typical games last minutes or 10's of minutes rather than hours. Of course we hope that some players will last hours on battles but we'd be honestly impressed if they did that on tram ride.