Tweet Jump

My entry Tweet Tweet Jam, a game under 546 chars. Controls: left/right: move, x: restart when game is over. Warning: might be unplayable, cause of the char limit.

-- tweetjump
-- by @egordorichev
::l::
f,z,a,y,vy,x,vx,s=rnd,flr,{},0,0,60,0,0
for i=0,15 do
add(a,{x=z(f(16))*8,y=z(f(120)/8)*8,c=f(3)+5})
end add(a,{x=60,y=80,c=7})::_::
if(btn(⬅️))vx-=0.4
if(btn(➡️))vx+=0.4
vx*=0.8
x+=vx
if(x<-4)x=132
if(x>132)x=-4
if(vy<0 and pget(x+4,69)~=0)vy=3
vy-=0.1
y+=vy
cls()for n in all(a) do
u=z(n.y+y)rectfill(n.x,u,n.x+7,u+2,n.c)if n.y+y>132 then
n.x=z(f(16))*8
n.y=z((-y-4)/8)*8
end
end
print("웃",x,64,8)s=max(s,z(y/10))print(s,1,1,10)if y-s*10<-64 then print("game over",46,60,9)
if(btn(❎))goto l end
flip()goto _