Semi-Regrettable: Hotline Miami 2.
I Loved the first game, and this game too, to an extent. The hard mode was Too loving hard, the AI Reaction time is Ridiculous. The Hard mode Guns Halve Ammo when you Drop Them, and the Glitches. Jesus loving christ the glitches.
Here's a little story, I was trying to beat down under in hard mode, The hardest loving level in the game, and After beating the level, The stairs Glitched up and spawned me inside of a loving Wall. I Decided "forget It, I beat the loving level fair and square, I'm just gonna edit the save file." I edited the save file, and the game would crash upon loading. I Tried fixing what I changed, it still didn't loving work. I Loaded my Backup of the save File, AND IT STILL DID NOT loving WORK.