The King of Fighters NESTS Collection/Secrets

Fight as Kula Diamond
Highlight Whip at the character selection screen and press psx: Start. Highlight Vanessa and press psx: Start. Highlight Seth and press psx: Start. Highlight Maxima and press psx: Start. Highlight K' and press psx: Start. Highlight the "?" icon and press psx: Start. Then, press psx: Up lstick, and psx: Down lstick. Kula Diamond will appear below the "?" icon.

Maniac Strikers
Select Chang, Choi, Iori, Kula, Ryo, Ramon, or Kyo as a character. Highlight the "Another Striker" option at the Striker selection screen, then press psx: Up lstick, psx: left lstick, psx: left lstick, psx: left lstick, psx: right lstick, psx: right lstick, psx: right lstick, psx: down lstick. "Another Striker" will change to "Maniac Striker" to confirm correct code entry.

Alternate costumes
Highlight Benimaru, Choi, K', Kensuu, Kyo, Mai, Mary, Terry, or Whip at the character selection screen, then press C + D.

Select winning pose
Press A, B, or C after the last attack, before the pose sequence begins. If your character is the losing fighter, press A, B, or C on controller two at this time.

Play as Evil Kyo (Kusanagi)
Highlight Kyo Kusanagi at the character selection screen and press psx: up lstick, psx: down lstick, psx: right lstick, psx: left lstick, psx: down lstick, psx: up lstick, psx: left lstick, psx: right lstick then press A, B, C, or D. Note: This can only be done in the beta versions of the game.

Play as the Orochi Team
Highlight any King Of Fighters '98 team member (Yashiro, Shermie, or Chris) then hold psx: start and press A, B, C, or D.

Play as Rugal
Arcade/PS2 only: highlight Yashiro at the character selection screen and press psx: left lstick, or highlight Daimon and press psx: down lstick.

Play as Orochi Leona
While playing as normal Leona at any time during the round press psx: up lstick, psx: down lstick, psx: up lstick, psx: down lstick, psx: up lstick, psx: down lstick + B + D. Leona will turn into Orochi form. Note: Half of Leona's life bar will disappear when you perform this code, and she will be able to do her Rebel Spark SDM (QCB, HCF + BD).

Random character selection
Press psx: start anywhere except at the Neo face team (Yashiro, Shermie, Chris). You will be able to select random characters, previously selected by choosing the question mark.

Play by random team only
Press psx: start anywhere except at the Neo face team (Yashiro, Shermie, Chris) and press psx: up lstick, psx: down lstick, psx: right lstick, psx: left lstick, psx: down lstick, psx: up lstick, psx: left lstick, psx: right lstick. The pointer will now move randomly on the teams.

Select victory pose
Press a Punch or Kick button immediately after your opponent is defeated.

Edit team random select mode
Hold psx: start at the character selection screen. The pointer will move randomly across the characters. Now, press any button three times. In this mode, your players will be changed every time you face a new opponent.

Original team random select mode
Hold psx: start, then move psx: neutral lstick in any direction at the character selection screen. The pointer will become bigger while it moves randomly across the characters. Press any button to choose a team. In this mode, your team will be changed every time you face new opponent.