Sidewind

Also playable on the PICO-8 forums!

A tiny, simplistic 1-button arcade game written in 560 characters of code. Made for TweetTweetJam 2.

Your thread is constantly moving and turning. Press Z to switch which direction you turn in. Avoid obstacles and the ever-encroaching walls for as long as you can!

Reset the cart from the pause menu to play again.

Full Code:

e=camera
p=add
r=del
h={}m=160
t=60
o=32
x=63
y=o
v={1,3,11,10}f={}g={}for q=0,12 do
p(f,x)p(g,y)end
a=7
b=1
l=7
i=m
d=80
function _update()j=41-d/4
k=86+d/4
cls(l)rectfill(j,0,k,m,0)e(0,y-o)for q=#h,1,-1 do
c=h[q]circfill(c.z,c.w,c.s,l)
if(c.w<y-80)r(h,c) end="" if="" l<8="" then="" i+="1" if(i="">d)d=max(d-4,20)p(h,{z=j+rnd(k-j),w=m+y,s=min(5+rnd(d/2),24)})i=0
if(btnp(4))b*=-1
a=(a+b+t)%t
x+=4*cos(a/t)p(f,x)r(f,f[1])y-=4*sin(a/t)p(g,y)r(g,g[1])
if(pget(x,y)==7)l=13
end
for q=1,12 do
line(f[q],g[q],f[q+1],g[q+1],v[flr(q/3)])end
e()
?flr(y-o),1,1,0
flip()end
--by @jusiv_