Snake - not snake

module Snake
(
input [1:0] KEY , // keys
output [9:0] LED , // leds
output [7:0] HEX0, // displays
output [7:0] HEX1,
output [7:0] HEX2,
output [7:0] HEX3,
output [7:0] HEX4,
output [7:0] HEX5
);

genvar i;

generate
    for (i=0; i <9; i=i+2)
    begin : gen
        assign LED [i]=~KEY [1];
    end
endgenerate

genvar j;
generate
    for (j=0; j <6; j=j+1)
    begin : gen2
        case (j)
            0: assign HEX0 [4]=~KEY [0] ,
                         HEX0 [5]=~KEY [0] ,
                         HEX0 [7]=~KEY [0];
            1: assign HEX1 [4]=~KEY [0] ,
                         HEX1 [7]=~KEY [0];
            2: assign HEX2 [4]=~KEY [0] ,
                         HEX2 [5]=~KEY [0];
            3: assign HEX3 [6]=~KEY [0] ,
                         HEX3 [7]=~KEY [0];
            4: assign HEX4 [6]=~KEY [0];
            5: assign HEX5 [2]=~KEY [0] ,
                         HEX5 [5]=~KEY [0] ,
                         HEX5 [7]=~KEY [0];
            endcase
    end
endgenerate
endmodule