Height: (Number of rows.)
Width: (Number of columns.)
Clearence: (Minimum number of empty rows on top.)
Rate: (Milliseconds to fall one tile.)
Down Speed: (If down key is held, command is repeated every X milliseconds)
Rotate Speed: (If rotate key is held, command is repeated every X milliseconds)
Left/Right Speed: (If left or right key is held, command is repeated every X milliseconds.)
Use A, S, D, and W as left, down, right, and up respectively.