Various Codes

Hint 1 of 7:

GOTO: Level select screen (you can access two extra secret levels here, the
Vomitorium and This Causes an Error!)

Hint 2 of 7:

\LEE: Music selection.

Hint 3 of 7:

\MAP: Reveal the entire map.

Hint 4 of 7:

HUNTPACK: All keys, Armor, either Heatseeker or Split Missile, depending on
version.

Hint 5 of 7:

SIXTOYS: Items Aplenty.

Hint 6 of 7:

WHERE: Shows your coordinates.