Four of the dots are assigned to two bosses each, one dot is assigned to the Balloon and Wire lifts, and the sixth dot is a checksum. Each of the first five dots goes into one of four spaces, and the "checksum" dot goes into one of 11 spaces, which must map to the number of bosses defeated plus the number of optional lifts obtained.

Effect	Password
Balloon Lift not obtained, Wire Lift not obtained	E3
Balloon Lift not obtained, Wire Lift obtained	D4
Balloon Lift obtained, Wire Lift not obtained	D3
Balloon Lift obtained, Wire Lift obtained	F3
Bright Man defeated, Toad Man defeated	A1
Bright Man defeated, Toad Man undefeated	C2
Bright Man undefeated, Toad Man defeated	B1
Bright Man undefeated, Toad Man undefeated	A2
Checksum 0	F5
Checksum 1	A6
Checksum 10	F1
Checksum 2	B2
Checksum 3	B3
Checksum 4	C1
Checksum 5	C4
Checksum 6	C6
Checksum 7	D2
Checksum 8	E4
Checksum 9	E6
Dive Man defeated, Skull Man defeated	E2
Dive Man defeated, Skull Man undefeated	E1
Dive Man undefeated, Skull Man defeated	F2
Dive Man undefeated, Skull Man undefeated	D1
Drill Man defeated, Pharaoh Man defeated	A4
Drill Man defeated, Pharaoh Man undefeated	C3
Drill Man undefeated, Pharaoh Man defeated	B4
Drill Man undefeated, Pharaoh Man undefeated	A3
Dust Man defeated, Ring Man defeated	B5
Dust Man defeated, Ring Man undefeated	C5
Dust Man undefeated, Ring Man defeated	B6
Dust Man undefeated, Ring Man undefeated	A5