If you genuinely need a smaller download, consider these legitimate or semi-legitimate options:
: DirectX 9.0c compatible card with at least 128 MB VRAM (e.g., GeForce 6600 or Intel HD 3000). Download REPACK Pes 2013 Highly Compressed 6 Mb
If a site claims the full game is only 6 MB, it is almost certainly a fake installer or a virus. If you genuinely need a smaller download, consider
If you’d like, I can instead: