All Weapons ...
	Bird Mode ...
	Infinite Health ...
	Infinite Lives ...
	Level Passwords ...
	Level Select...
	Sound Test...

From the password screen enter, DLVTRKBWPS.

From the password screen enter, DLVTRKBBRD. Hold Select and press A to fly during the game.

From the password screen enter, DLVTRKBNRG.

From the password screen enter, DLVTRKBLVS.

Level - Easy - Medium - Hard

2 - DVYLWKVYNL - QVYLWKVYDT - DLTLWKVYYC
3 - GRYLWKWVNR - TRYLWKWVNN - GNYLWKWVPP
4 - DRYLSRWVRY - QRYLSRWVTS - DNYLSRWVPT
5 - GVZLSRWQKZ - TVZLSRSQKB - GLZLSRSVPW
6 - DVZLSVQKK - QVZLBVSQRL - DLZLBVSVVB
7 - GRZLBVSQZY - TRZLBVBQKB - GNZLBVBQVL
8 - DRZLBVSQGG - QRZLBVBQKS - DNZLBVBQVN
9 - GVYNBVBQGD - TVYNBVBQRL - GLYNBVBQQD

From the password screen enter, DLVTRKBLVL.

At the title screen, highlight Options, hold Up (now highlighting Start) and press Start. The sound test is a bit confusing to use since there is no text. Press Up/Down to toggle between Music (upper) and SFX (lower), press Left/Right to choose a track, and press Start to play it.