WHAT IS the differeance between Slender Hentai Edition OR SLENDER ARRIVAL???? these 2 versions are the same??

I am deeply concerned! As I was about to purchase this game for my friend's birthday I noticed I CANT! The store page is gone! GONE! WHY has this happened??

hot 2 speedrun

When i enter the menu, I cannot click any of the buttons to play, enter settings, credits or exit. Please help fix

Title. This will very much determine whether i purchase this game or not.