Have upload two Flash files here, but the resolution is much smaller as on other sites, or i play them with my brother.

I´ve tested here right click on save this flash and then open in new tab- it works fine, resolution is in the right size:
20273596

here on the site

273595

using Firefox 25.01 actual Flash Player.

Uploading flash files here was frowned upon.

Checkmate - What's your policy for these?

Keep some of those well made is fine but that doesn't mean you can start posting a lot of generic one, especially touhou and vocaloid since there's too many of them, we wouldn't want them to be here.

Regardless our policy there seems have a technical problem. I will bring it to github.