The generator matrix

 1  0  0  1  1  1  2  1  1 X+2  X  X  1  1  1  1  0  1  2  1 X+2 X+2  X  0  1  0  2  2  1  1
 0  1  0  0  1 X+1  1  1  X  X  1  1  X X+1  1  X  2  3  1  0  1  1  2  1  1  1 X+2  1  2  0
 0  0  1  1  1  0 X+1  X X+3  1 X+2  1  0  1  X  1  1 X+3  1  2  0 X+1  1  2 X+3  1  1 X+1 X+2  2
 0  0  0  X X+2  2  X  2  X  X  X  0 X+2  2  X  0  X  X  X X+2  0  2  2 X+2  0  0 X+2  2  0  0
 0  0  0  0  2  0  2  2  2  0  0  2  0  2  2  0  2  0  0  2  2  0  2  0  0  2  0  2  0  2

generates a code of length 30 over Z4[X]/(X^2+2,2X) who´s minimum homogenous weight is 25.

Homogenous weight enumerator: w(x)=1x^0+112x^25+304x^26+440x^27+456x^28+482x^29+554x^30+524x^31+447x^32+342x^33+236x^34+120x^35+40x^36+22x^37+10x^38+4x^39+2x^41

The gray image is a code over GF(2) with n=120, k=12 and d=50.
This code was found by Heurico 1.16 in 0.273 seconds.