Enter the following codes at the Password screen to unlock the corresponding level:

Level 2: Y2QXMZNHNLLQLBLM9L
Level 3: GJ9ZP35TR0QQLBCV1N
Level 4: YWGBRDTTT00LLBHXWS
Level 5: H0SQTNVTW000VBHYNS
Level 6: 2111YQ7TY010ZBHVFS
Level 7: M2D98XBT00202BHWBS