After choosing a difficulty level & before selecting a mission, press: C-Right, C-Left, C-Right, C-Down, R. If you've done this correctly, you'll hear Ethan say, "Ah, that's better."
After choosing a difficulty level & before selecting a mission, press: R, L, C-Left, C-Right, C-Down. If you've done this correctly, you'll hear Ethan say, "Ah, that's better."
After choosing a difficulty level & before selecting a mission, press: C-Down, C-Up, R, L, Z. If you've done this correctly, you'll hear Ethan say, "Ah, that's better."
After choosing a difficulty level & before selecting a mission, press: C-Up, Z, C-Up, Z, C-Up. If you've done this correctly, you'll hear Ethan say, "Ah, that's better" and a horn sound.
After choosing a difficulty level & before selecting a mission, press: R, C-Up, L, C-Left. If you've done this correctly, you'll hear Ethan say, "Ah, that's better."
After choosing a difficulty level & before selecting a mission, press: C-Down, R, C-Up, L, C-Left. If you've done this correctly, you'll hear Ethan say, "Ah, that's better."
After choosing a difficulty level & before selecting a mission, press: C-Up, L, C-Right, C-Left, C-Up. If you've done this correctly, you'll hear Ethan say, "Ah, that's better."
After choosing a difficulty level & before selecting a mission, press: R, L, C-Down, C-Up, C-Up. If you've done this correctly, you'll hear Ethan say, "Ah, that's better."