How many characters of code did you use?
559

If you're comfortable with it, paste your game code here, so we can marvel at your achievement!
a=0
w=btnp
j=2
z=6
u=35
g={}b={}n={}for x=0,u do::x::c=flr(rnd(z*z))
if(n[c])goto x
n[c]=1
b[x]=flr(c/2)end
s,o,d,p=20,-1,0,-1::_::cls(j>u and 5*t())if w(4)and d<1 then
if o<0 then
o=s
elseif s!=o then
p=s
d=60
a+=1
if(b[s]==b[o])g[s]=1 g[o]=1 j+=1
end
end
if(w(0))s-=1
if(w(1))s+=1
if(w(2))s-=z
if(w(3))s+=z
if(d<1 and p>=0)p=-1 o=-1
s=mid(0,s,u)d-=1
for i=0,u do
v=o==i or p==i or g[i]x,y=i%z*16+16,16+16*flr(i/z)k=b[i]rectfill(x,y,x+14,y+14,i==s and 7 or v and k%5+2 or 1)
?v and sub("∧●♥⧗♪ˇ⌂🐱✽",k%8+1,k%8+1)or"",x+4,y+5,k/2%7+6
end
?a,60,0,9
flip()goto _