[RavenTelvecho]

R0bin:
if(created){
x=x-(1/16);
timeout=0.05;
this.imgwidth=394;
this.imgheight=260;
hide;
}
if(timeout){
timeout=0.05;
this.speed+=4;
for(i=this.imgwidth;i!=0;i--{
showimg i,#f,x+(i/16),y+sin((i+this.speed)*0.03);
changeimgpart i,i,0,1,this.imgheight;
}
}

I edited kai's code so you could use it in-level.