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 Stage 1! (1Player Game)
Clear Stage 2! (1Player Game)
Clear Stage 3! (1Player Game)
Clear Stage 4! (1Player Game)
Clear Stage 5! (1Player Game)
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)
Clear through Stage 5 without Using the Bomb! (1Player Game)
Try It Out!
Taunt 30+ Times in 1 Play! (1Player Game, No Continues)