Nectaris Codes -

Xenon Unit single only:
Hold L1 + L2 + Circle, then press X at the map selection screen.

Two player versus mode single only:
Hold L1 + L2 + Square, then press X at the map selection screen.

Double attack power single only:
Successfully complete all 64 normal and hidden levels. Then, hold R1 and press X at the map selection screen.

Extra Goodies Battle Test:
Successfully complete all levels in main and original modes, then enter BATTLE as a password.

Single Scenario mode:
Successfully complete all levels in main and original modes to unlock this option at the main menu.

Main Campaign passwords:

Level	Password	Bonus
1	RANDAL	LADNAR
2	HUNDRA	ARDNUH
3	CINBER	REBNIC
4	MARLIN	NILRAM
5	BAYARD	DRAYAB
6	WEBLEY	YELBEW
7	PARKER	REKRAP
8	MERKEL	LEKREM
9	ITHACA	ACAHTI
10	BAIKAL	LAKIAB
11	SAVAGE	EGAVAS
12	VALMET	TEMLAV
13	MAUSER	RESUAM
14	KIMBER	REBMIK
15	BISLEY	YELSIB
16	MEANEC	CENAEM

Original Campaign passwords:

Level	Password	Bonus
1	REVOLT	TLOVER
2	ICARUS	SURACI
3	CRYANO	ONAYRC
4	RAMSEY	YESMAR
5	NEWTON	NOTWEN
6	SENECA	ACENES
7	SABINE	ENIBAS
8	ARAIUS	SUIARA
9	GALOIS	SIOLAG
10	DARWIN	NIWRAD
11	PASCAL	LACSAP
12	HALLEY	YELLHA
13	BORMAN	NAMROB
14	APPOLO	OLOPPA
15	KAISER	RESIAK
16	NECTOR	ROTCEN