Level codes:

 LEVEL 01: WOBBLER               LEVEL 02: YIG
 LEVEL 03: CTHULHU               LEVEL 04: LOVECRAFT
 LEVEL 05: TOMMYKNOCKERS         LEVEL 06: MATCHERS
 LEVEL 07: MIDGARD               LEVEL 08: UNICORN
 LEVEL 09: ISIS                  LEVEL 10: MIDNIGHT
 LEVEL 11: KAZGAROTH             LEVEL 12: MISCATONIC
 LEVEL 13: THORBADIN             LEVEL 14: MISHACAL
 LEVEL 15: ABANASINIA            LEVEL 16: EARTHMOTHER
 LEVEL 17: AZATHOT               LEVEL 18: AKKALABETH
 LEVEL 19: SILMARILION           LEVEL 20: DRAUG
 LEVEL 21: SINDARIN              LEVEL 22: OSSIRIAND
 LEVEL 23: MITHRIL               LEVEL 24: GLAURUNG
 LEVEL 25: ELBERETH              LEVEL 26: THORON
 LEVEL 27: AMARTH                LEVEL 28: THARGELION
 LEVEL 29: NAURIN                LEVEL 30: MEREMONT
 LEVEL 31: CAERWEDDIN            LEVEL 32: STAHLRATTE
 LEVEL 33: MANDELBROT            LEVEL 34: VON KOCH
 LEVEL 35: CHRISTUS              LEVEL 36: JEHOVA
 LEVEL 37: 92E2 JMP 92E2         LEVEL 38: RAWHEADREX
 LEVEL 39: HELLRAISER            LEVEL 40: PINHEAD
 LEVEL 41: DEVPAC                LEVEL 42: EINSTEINIUM
 LEVEL 43: PROTACTINIUM          LEVEL 44: PROMETHIUM
 LEVEL 45: J S BACH              LEVEL 46: TOCATE ET FUGA
 LEVEL 47: BRANDENBURG           LEVEL 48: COLONIA CLAUDIA
 LEVEL 49: VOLKSGARTEN           LEVEL 50: YEBRA
 LEVEL 51: 64738                 LEVEL 52: 64802
 LEVEL 53: NIBELUNGEN            LEVEL 54: HAGEN VON TRONJE
 LEVEL 55: DONAK                 LEVEL 56: SKIDBBLADNIR
 LEVEL 57: DAGON                 LEVEL 58: SLOWATSKI
 LEVEL 59: CULLINANE             LEVEL 60: ARTA MYRDHYN
 LEVEL 61: ANNA MAGDALENA        LEVEL 62: PHILIP EMANUEL
 LEVEL 63: GRACELAND             LEVEL 64: JOLLY ROGGER
 LEVEL 65: GET FUNKY             LEVEL 66: TWILIGHT
 LEVEL 67: DRAGONLANCE           LEVEL 68: HATHEG KLA
 LEVEL 69: INQUANOK              LEVEL 70: KIRAN
 LEVEL 71: DUKRANOS              LEVEL 72: THRAN
 LEVEL 73: ULTHAR                LEVEL 74: THALARION
 LEVEL 75: NGRANEK               LEVEL 76: CATHURIA
 LEVEL 77: ENTROPIE              LEVEL 78: HEISSENBERG
 LEVEL 79: LAPLACE               LEVEL 80: INTEGRAL
 LEVEL 81: DIFFERENTIAL          LEVEL 82: INTEGRAL
 LEVEL 83: HYPERZYKLUS           LEVEL 84: APFELMANN
 LEVEL 85: CHAOS                 LEVEL 86: DYAKHEE
 LEVEL 87: DENDRIT               LEVEL 88: NEURON
 LEVEL 89: PANKREAS              LEVEL 90: PANAKREA
 LEVEL 91: UNORDNUNG             LEVEL 92: DEUTSCHLAND
 LEVEL 93: GERMANY               LEVEL 94: MUSIC TELEVISION
 LEVEL 95: JOHN BELUSHI          LEVEL 96: RHYTHM N BLUES
 LEVEL 97: BLEICHRICHTER         LEVEL 98: TRANSLATION
 LEVEL 99: CTHUGA

 For version 1.2:

 If you have reached level 42 and are playing the solitaire levels you
 can type HLTME and the timer stopps.