Some time ago we broke that Geometry Wars: Retro Evolved 2 would be coming to the Xbox Live Arcade. Now X360A.org has gotten its hands on the achievement list of this unannounced, unseen title.

From the achievement list, we can determine a few things:

- Game Type 1 - 'Waves', which was the game in Project Gotham Racing 4. We can assume this is either the same, or a tweaked version of it. The achievements also mention 'zones', which were a kind of enemy in Waves

- The game will contain Geoms - much like Geometry Wars Galaxies for the Nintendo Wii and DS and Geometry Wars Waves in PGR4. An achievement is to collect 500 of them in a single game. They were used as currency in Galaxies, and multipliers in Waves.

- Game Type 2 - 'King', new to Geometry Wars, appears to use the 'gate' enemies quite a bit.

- Game Type 3 - 'Deadline', which also uses gates. Little else is known.

If the achievement list is now out there... maybe this will be Microsoft's "secret" release like last years Golden Axe / Sonic duo?

The game also seems to contain.. well, a lot of animals? The graphic style on the achievements are completely different to those in the first Retro Evolved. Maybe they're taking the whole 'Waves' concept a little seriously, making the game a blue beach like scenario? Certainly would be a huge change from the... well, geometry the game has been known for. Guess we'll have to wait and see.

Souce: Xbox360Achievements.org