Cheats for E.T.: The Extra-Terrestrial (GBA)

Level 2 password
Up, Up, A, Down, Down, B, R, L

Level 3 password
Left, Up, Right, Down, L, A, R, B

Level 4 password
A, Left, B, Right, L, Up, R, Down

Level 5 password
L, R, R, L, A, Up, B, Left

Level 6 password
L, Left, R, Right, A, A, B, A

Level 7 password
B, R, B, L, A, Up, B, Up

Level 8 password
Up, Up, A, Down, Down, Left, A, B

Level 9 password
Right, B, B, Left, Up, R, R, L

Level 10 password
Left, Left, A, L, Right, Right, B, R