The generator matrix

 1  0  0  1  1  1  1  1  1  6  1  1 X+6  1 2X+3  1 2X  1  1  X  1  1  3  1  1 2X  1  1  1 2X  1  1  3  1  1  6  1  1 2X+6  1 2X+6  1  6  1  1  1  1  1  1  1 X+3  1  1 2X+3  1  X  1  1  1  1  1 X+6  1  1  6  1  X  3  6 2X+6  1  1 2X+6  1  1  1  X  1  1 X+6
 0  1  0  6  1  7  5  X  8  1 2X+7 2X+5  1 X+3  1 2X X+6 2X+3 2X+1  1 X+2  8  1  7  3  1 X+7 X+8 X+1  1 2X+2 X+6  1  5 2X+4  X 2X+2  X  1 2X  0 2X+5  1 2X+3  3  4 2X+7  0 2X+1 X+5  1  8 X+2  1 2X+6  6 X+8  5 X+5 X+3  7  1 2X+4 2X+5  1 2X+4  1  1 2X  1  5 2X+4  1 X+1 X+6 X+7  1 2X+6 2X+1  1
 0  0  1 2X+7 2X+1  6 X+2 X+8 2X  1 2X+5  7  5 2X+3 X+6  4  1 2X+2 2X+4 X+1  8 X+3 2X  2 X+7 2X+2  X  1  4  5 2X+6 X+3 X+7  8 X+5  1  5 X+1 2X+3  2  1 X+2 2X+8 2X+3  1 X+2  3 X+5 X+6 2X+8  7 X+4 2X+6  6  3  1 2X+1 2X+1  X  1 2X  0 X+4 2X+7 X+7 2X+7 2X+4 X+3  1 X+2  6  5 2X+8 2X+4  2 2X+8  X  8  4 2X+2

generates a code of length 80 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 154.

Homogenous weight enumerator: w(x)=1x^0+1062x^154+1476x^155+1650x^156+2472x^157+1854x^158+1246x^159+2130x^160+1440x^161+922x^162+1314x^163+1008x^164+534x^165+1086x^166+468x^167+398x^168+336x^169+234x^170+28x^171+18x^172+6x^175

The gray image is a code over GF(3) with n=720, k=9 and d=462.
This code was found by Heurico 1.16 in 1.21 seconds.