Omega Five - Achievements

Cleared Stage 1 10 points: Clear Stage 1 in Single Player Arcade Mode.
Cleared Stage 2 10 points: Clear Stage 2 in Single Player Arcade Mode.
Cleared Stage 3 10 points: Clear Stage 3 in Single Player Arcade Mode.
Cleared Stage 4 10 points: Clear Stage 4 in Single Player Arcade Mode.
Ruby Master 25 points: Complete Single Player Arcade Mode without continues using Ruby.
Sensei Master 25 points: Complete Single Player Arcade Mode without continues using Sensei.
Tempest Master 25 points: Complete Single Player Arcade Mode without continues using Tempest.
"R.A.D." Master 25 points: Complete Single Player Arcade Mode without continues using R.A.D.
30 Second Max Bonus 15 points: Maintain the max bonus for 30 seconds or more.
Don't Let Me Go 15 points: Hold onto an enemy for 10 seconds or longer with the anchor using Ruby.
Untouchable 15 points: Repel 20 or more enemy bullets using Tempest.
Incredible Restraint 15 points: Go 30 seconds without swinging Sensei's sword.

Unlockables:

5 credits
Play for 60 minutes total.

8 credits
Play for 180 minutes total.

Unlimited credits
Play for 300 minutes total.

Play as R.A.D
Successfully complete Arcade mode as Ruby.

Play as Sensei
Successfully complete Arcade mode as Tempest.

Female system voice
Successfully complete Arcade mode as R.A.D.

Retro mode
Successfully complete Arcade mode as Sensei.

Arcade mode
Successfully complete Arcade mode.

Challenge mode
Successfully complete Arcade mode.

Challenge mode
Successfully complete Arcade mode.