Compressed Bytes used
490

Source Code (OPTIONAL)
id={
0,11,2,8,8,8,0,0,
11,11,2,8,8,8,8,0,
11,11,0,0,2,8,8,8,
11,10,0,0,0,0,8,8,
10, 3,0,0,0,0,8,8,
3, 3,0,0,2,8,8,8,
3, 3,2,8,8,8,8,0,
0, 3,2,8,8,8,0,0}

function _draw()
d=t()*16
cls(t()%6)
p=d/32%6
m=d*.001

for x=0,128,4 do
for y=0,128,2 do
pset(x,y+(x^y)%9,
sin((x^y)*2*m)*8+
6-sin((m))*3%3)
end
end

for x=0,16 do
poke(12869,d&8+x*p)
sfx(1)
for y=0,16 do
col=cos((x-8)*(y-8)*m+m/2)*3+7
circ(x*8,y*8,col%4,col)
end
end

v=sin(m*9)*10+10
rectfill(0,v+80,128,v+102,0)

for x=1,8 do
for y=0,7 do
pset(5+x,88+y+v,id[x+y*8])
end
end

if p<2 then
print("inercia demoparty\n4-6 nov 2022",
20,86+v,7)
elseif p<4 then
print("fantasy console\n512 byte competition",
20,86+v,7)
else
print("https:\\\\2022.inercia.pt\nremote entries welcome",
20,86+v,7)
end

end