Level     Code
----------------
   2       TEST
   3       GAME
   4       SHIP
   5       RACE
   6       WORD
   7       SHOP
   8       SIZE
   9       QUIZ
  10       DOLL
  11       DATE
  12       ZOOM
  13       DISK
  14       GOLD
  15       ZERO
  16       FIRE
  17       ROOT
  18       READ
  19       TAPE
  20       UNIT
  21       SONG
  22       TYRE
  23       LOVE
  24       NOTE
  25       JAZZ
  26       HELP
  27       KING
  28       GIFT

Levelcodes by Felipe Gerhard <felipe.gerhard@gmx.net>