Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
All-Rounder ( 20 points )	Get at least one silver medal in each Game Mode.
Armorer ( 5 points )	Acquire the Beam-Shot by defeating the first intermediate boss in Arcade Mode.
Challenger ( 20 points )	Get 250 Challenge Points.
I'm a Survivor ( 10 points )	Survive at least 5 min in Survival Mode.
In the Flow ( 10 points )	Play for at least 2 min and 40 sec in Time Limit Mode.
Master Beam-Shot ( 20 points )	Shoot at your time shadow with the Beam-Shot and destroy at least 4 enemies that way.
Master of Time ( 30 points )	Travel through time for a total of 30 minutes.
Shocking ( 10 points )	Perform a Shockwave.
Tactician ( 10 points )	Get 3 platinum medals in Tactics Mode.
Time Traveler ( 5 points )	Use Time Travel Past scoring more than 15 000 at once.
Victory ( 50 points )	Complete Arcade Sectors 1, 2, 3 and 4 in order to finish Arcade Mode.
Wave Cleared ( 10 points )	Play through a whole Wave level without dying.