Achievements...
	Fight against hidden stage thr...
	Second loop...

Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
300 Combos ( 10 points )	Complete 300 Combos in 1 stage! (1 Player Game).
Countdown to Destruction ( 20 points )	Clear Stage 5! (1 Player Game).
Crimson World ( 10 points )	Taunt 30+ Times in 1 Play! (1 Player Game, No Continues)
Don't Use the Bomb!! ( 20 points )	Clear through Stage 5 without Using the Bomb! (1 Player Game).
Final Stage ( 20 points )	Obliterate the Final Boss! (1 Player Game).
KOF Into the Sky ( 10 points )	Try It Out!
Prove Your Ability ( 10 points )	Clear Stage 1! (1 Player Game).
Resurrection ( 20 points )	Clear Stage 4! (1 Player Game).
Separate Fates ( 20 points )	Clear Stage 3! (1 Player Game).
The Edge of Truth ( 20 points )	Clear Stage 2! (1 Player Game).
The Temptation of the Gold Medal ( 20 points )	Get 50 Gold Medals in 1 stage! (1 Player Game).
Turning the Tables! ( 20 points )	Obliterate the Intruding Boss! (1 Player Game).

Complete stage three without losing a life, then defeat the Boss at the end of the stage with a special move or a bomb. After the points appear, a new Boss will appear.

Collect the envelopes dropped by various King Of Fighters characters. The first four envelopes can be collected during any playthrough. The last envelope is collected using stage selection opton. When collecting the fifth envelope, you must also complete the entire stage and defeat the Boss without losing a life. Note: You will then have to play through all the stages again on a harder difficulty and see an alternate final Boss after the fifth stage Boss has been defeated.