Finishes the 0th (starting) world of intense (hardest) difficulty.
Couldn't find any TASing related works on this game. It's a "new" homebrew, can be downloaded here: http://alm.ug.atman.pl/alzen/wordpress_d9/wp-content/uploads/2013/07/Inversion-1.4.rar
Some platforms are available in white "dimension" while the opposite ones in "black" dimension. There's a trick to fall through blocks from a spring but didn't save time in these levels.