Full list of all 12 KOF Sky Stage achievements worth 200 gamerscore. It takes around 2-3 hours to unlock all of the achievements on Xbox 360.
Clear through Stage 5 without Using the Bomb! (1Player Game)
Stage 5 Cleared! (1Player Game)
Stage 4 Cleared! (1Player Game)
Stage 3 Cleared! (1Player Game)
Stage 2 Cleared! (1Player Game)
Stage 1 Cleared! (1Player Game)
30+ Taunts Completed in 1 Play! (1Player Game, No Continues)
Flight Successful!
Obliterate the Final Boss! (1Player Game)
Obliterate the Intruding Boss! (1Player Game)
Get 50 Gold Medals in 1 stage! (1Player Game)
Complete 300 Combos in 1 stage! (1Player Game)