This is previously published work, so I don´t think it qualifies for IOMBCC. Anyway, it´s a fun program
Snake-game with music in two lines of msx-basic:

1 K=-1-RND(-TIME):COLOR3,1,1:SCREEN3:D=
636:DIMA(D):A(0)=D:A(1)=K:A(2)=K:E=256:
LINE(0,0)-(E,191),,B:F=2:S=1:M=3:Q=511:
Z=64:P$(3)="L6O5CDECCDECEFG3EFG3":P$(2)
="L12GAGFE6C6GAGFL6ECDO4GO5C3DO4GO5C3":
FORB=0TO9:B=STICK(0):S=Z*((B=1)-(B=5))-
(B=3)+(B=7)-S*(B=0)
2 I=I-1ANDQ:D=D+4*S:X=DMODE:P=POINT(X,D
\Z):PSET(X,D\Z):A(I)=D:IFP=3THENSCREEN0
:PRINTWELSEPSET(A(F)MODE,A(F)\Z),1:H=P=
6ORW=0ORU*H:K=RND(1)*E:L=RND(1)*192:G=P
OINT(K,L):J=G=1:W=W+J*H:U=J+1:PSET(K,L)
,U*G+6*H*J:F=F-1-HANDQ:T=1+PLAY(0):PLAY
P$(M*T):M=MXORT:NEXT

More basic two-liners are available at:
www.700km.com.br/mundobizarro/twoliners/

Nice snake ricbit I like the other two liners you have too

Here is my snake game in a two liner version as well. It requires some more characters of code since I had to put in a couple of ELSE and NEXT statements that aren't needed in the six line version:

1 SCREEN1:KEYOFF:FORR=0TO9:R=0:COLOR5,1
,1:LOCATE8,11:PRINT" s to start":M=32:S
=-10:IFINKEY$<>"s"THENNEXTELSECLS:FORD=
0TO737::D=D+(D+1AND2ANDD>MANDD<704)*15:
F=6176:VPOKED+F,7:NEXT:H=6480:T=H-D:FOR
C=ATOF:S=S+10:L=F+RND(1)*D:IFVPEEK(L)-M
THENNEXT
2 Y=Y-10*(S>Y):R=3ANDASC(INKEY$+"C")+R+
1:VPOKEL,15:U=M^(RAND1)*(1-(RAND2)):C=0
:VPOKE2^13,6:VPOKEH-D,U+M:H=H+U:O=VPEEK
(H):VPOKEH,9:IFO-MANDO-15THENNEXTRELSEL
OCATE1,0:PRINT"SCORE"S,"HI"Y:IFO=15THEN
NEXTELSEVPOKET+D,M:T=T+VPEEK(T)-M:GOTO2