Highlight the "Level" option and press [Fire]. Then, enter one of the following passwords.

Password - Effect

NARCISSUS - 10
DEBUTANTE - 11
FIRKIN - 12
ACOUSTIC - 13
TRIPTYCH - 14
JABBERWOCKY - 15
WHIMSICAL - 16
CORNUCOPIA - 17
PUNJABI" - 18
TIDDLY POM - 19
SYZYGY - 2
SEPULCHRE - 20
KEWPIE DOLL - 20
EUPHEMISM - 22
GRAMMARIAN - 23
CROSSWORD - 24
QUARANTINE - 25
DRAMBUIE - 3
PLUG - 4
SOPRANO - 5
MAYONNAISE - 6
FAUCET - 7
POTATO - 8
WOOMERA - 9