Sorry for the super late response.
The games on Runouw specifically have been removed due to the lack of ability to host them on the site anymore (most likely since it costs extra money). However, there are copies of the downloadable versions for both Last Legacy and Super Mario 63 that can be found. Sadly I only know where the SM63 one is, and it is
here. This version can be played offline and runs as smooth as a low-powered flash game... oh wait.

There's also a standalone level designer copy OJ made put into a .swf file that can be played
directly on the browser.