Tweetcarts are PICO-8 programs that are written in 280 characters or less, so that they can fit in a tweet.
Hover or touch the images to see the code. If you have a copy of PICO-8 you can paste it directly and see it run.
r=rectfill ::_:: x=t() ?"⁶1⁶cd⁶!5f2c³" y=min(-cos(x)*10,4) u=-x%1<<7 ?"ᶜ7⁶.\0\0\0\0"..(split"\0⁶⁶⁶,⁶⁶⁶⁶,⁶ᵉᵉ⁵,⁶ᵉᶠ⁸,⁶⁷⁷⁶,⁶⁷ᵉ⁵,⁶⁷ᶠ⁸")[x*16%7\1+1],28,y+23 r(u-64,39-y,u,64,5) circfill(2,5,9,8) for i=3,57,9 do r(u-5-i,50-y,u-i,58-y,12) end goto _
pal({7,13,-3,2,-14},1)w=128n=20p={}r=rnd for i=0,n do p[i]={x=r(w),y=r(w),a=r(2)-1,b=r(4)-2}end ::_::cls()for i=0,n do q=p[i]q.x=(q.x+q.a)%w q.y=(q.y+q.b)%w for j=i,n do o=p[j]x=o.x-q.x y=o.y-q.y d=x*x+y*y if(d<750)line(q.x,q.y,o.x,o.y,d/150+1)end pset(q.x,q.y,1)end flip()goto _
_set_fps(60) pal({7,12,-4,-3,-11,-15,1},1) camera(-64,-64) ::🅾️:: cls() i=0 for y=-44,54,4 do i+=2 for x=-64+(i%4),64,4 do a=x/80 b=y/64 dist=-(a*a+b*b)/2 z=cos(-sin(t()*.15+dist/3))*10 pset(x,y+z*1.2,((z+10)/18)*6+1) end end flip() goto 🅾️
pal({-13,3,-5,11,-6},1) ::_:: cls() for i=0,128,4 do a=sin(i*t()/2/128+t()*.25)*20 b=cos(i*t()/4/128+t()*.3)*20 line( i, 40+a, i, 80+b, i/4%5+1) end flip() goto _
l=line pal({1,-15,-13,3,-5,11,-6,10,9,-7,8,-8},1) b,c,r=64,64,60 ::_:: cls() for i=1,12 do a=i*.041 x,y=b+cos(a)*r,c+sin(a)*r u,v=b+cos(a+t()/5)*r,c+sin(a+.5+t()/5)*r m,n=x-u,y-v p=4/sqrt(m^2+n^2) m*=p n*=p l(x,y,u,v,i)l(u+n,v-m)l(x+n,y-m)l(x,y) end flip() goto _
pal({10,-7,8,-7,10,14,1},1) ::_::w=40for i=0,3000do y=rnd(128)pset(rnd(128),y+rnd(20)-10,y/64+6)end rectfill(0,0,128,64,14) for y=1,79do r=(w-y)/w a=atan2(r,-sqrt(1-r*r)) x=sin(a)*w c=y/70*4+1 m=y/6*(sin(x*x/160+t()/4))*(50-y)/40 p=y+24+m line(64+x,p,64-x,p,c)end flip()goto _