Cube & Star: An Arbitrary Love

After discovering Logic (Z) and Passion (C), input this sequence: Z Z Z - C C C. This flood-fills tiles with a gray color and increases the world's Wallowing percentage, which is displayed next to the world map. Reach 20% Wallowing to unlock an achievement, and 50% Wallowing to unlock another achievement.

Set a metronome to 186 BPM and input the sequence to the beat, and skip a beat in the middle, to get the right gray color. Alternatively, use the following AutoHotkey script and press F11:

F11:: ; Wallowing (gray)
    Send Z
    Sleep 322
    Send Z
    Sleep 322
    Send Z
    Sleep 644
    Send C
    Sleep 322
    Send C
    Sleep 322
    Send C
return

After discovering Logic (Z) and Passion (C), input this sequence: Z Z Z - C C C. This flood-fills tiles with a gray color and increases the world's Wallowing percentage, which is displayed next to the world map. Reach 20% Wallowing to unlock an achievement, and 50% Wallowing to unlock another achievement.

Set a metronome to 186 BPM and input the sequence to the beat, and skip a beat in the middle, to get the right gray color. Alternatively, use the following AutoHotkey script and press F10:

F11:: ; Wallowing (gray)
    Send Z
    Sleep 322
    Send Z
    Sleep 322
    Send Z
    Sleep 644
    Send C
    Sleep 322
    Send C
    Sleep 322
    Send C
return