Can you Play PS3 games on PS4? Find out the possibility
US PlayStation Store update has 12 PS3 games free for PS | GameWatcher
Amazon.com: Mortal Kombat - Playstation 3 : Video Games
Download free PS3 stuff (eg. Free apps, free DLC, etc.) so you own it, before Store's going to shut down. Otherwise you won't ever be able to get it. : r/PS3