Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Brave Pilot (10 points): Complete stage 1 of R-Type in 1P Classic.
Earth Savior (30 points): Complete R-Type.
Scarred Hero (30 points): Complete R-Type II.
Bye-bye Bydo! (15 points): Kill 30,000 enemies.
Hidden Treasure (15 points): Find and destroy the 5 hidden spores on stage 4 of R-Type.
Combo Master (20 points): Kill at least 10 enemies with a single shot.
Beam Me Up! (20 points): Using only full beam shots and without dying, complete stage 1 of R-Type or R-Type II in 1P Classic.
Dare Devil (20 points): Using rapid-fire and no power-ups, complete stages 1 & 2 of R-Type in a single game of 1P Classic.
Power Hungry (10 points): Collect 500 power-ups.
Wall of Fire (10 points): Destroy every enemy and object in stages 1 & 2 of R-Type during Co-op play.
Bydo Headhunter (10 points): Kill one enemy of every kind in R-Type and R-Type II.
Reviver (10 points): Collectively tally 20 revivals in a single game of Classic Co-op.