Original list
Link to my Features list

Using only first-time viewings to satisfy the criteria.
Note: Some titles keep disappearing and reappearing. The Big Shave vanished for a time. Now the one that's missing is The Maze, Tobe Hooper's segment of a TV anthology series.

31/31
10/6 countries
* UK (Northern Ireland) (The Hungry Grass)
* Brazil (A Estória de Clara Crocodilo)
* USA (Son of Bambi Meets Godzilla, Betty Boop's Hallowe'en Party, Frankenstein, The Haunted Mouse, Beneath the Skin, The Haunted Mouth, A Night at the Table, Jeepers Creepers, Skintight, Cobweb Hotel, Hair Wolf, Premonitions Following an Evil Deed, The Big Shave, Too Many Cooks, Possibly in Michigan, The Legend of Sleepy Hollow)
* Japan (Howl from Beyond the Fog, The Demon)
* UK (England) (The Sandman, Tales of Frankenstein, The Treasure of Abbot Thomas, The World of Hammer: Dracula and the Undead, Lonely Water)
* France (Silver Slime)
* South Korea (Human Form)
* Mexico (Geometria)
* Canada (The Maze)
* Philippines (Sanctissima)
10/8 decades
* 1910s (Frankenstein)
* 1930s (Betty Boop's Hallowe'en Party, Jeepers Creepers, Cobweb Hote)
* 1940s (The Haunted Mouse)
* 1950s (Tales of Frankenstein)
* 1960s (The Big Shave)
* 1970s (The Demon, The Treasure of Abbot Thomas, The Haunted Mouth, The Legend of Sleepy Hollow, Lonely Water)
* 1980s (The Hungry Grass, A Estória de Clara Crocodilo, Silver Slime, Beneath the Skin, Geometria, Possibly in Michigan)
* 1990s (Son of Bambi Meets Godzilla, The Sandman, The World of Hammer: Dracula and the Undead, Premonitions Following an Evil Deed)
* 2000s (The Maze)
* 2010s (Howl from Beyond the Fog, The Birch, A Night at the Table, Human Form, Skintight, Hair Wolf, Too Many Cooks, Sanctissima)
4/2 folk horror
* The Hungry Grass
* Howl from Beyond the Fog
* The Demon
* The Birch
4/4 films from 1981
* The Hungry Grass
* A Estória de Clara Crocodilo
* Silver Slime
* Beneath the Skin
2 films from your birth year (1974)
* The Treasure of Abbot Thomas
* The Haunted Mouth
3/2 haunted house films
* The Haunted Mouse
* The Haunted Mouth
* Jeepers Creepers
1/1 The worst Part 2 that you haven't seen and can access
* Son of Bambi Meets Godzilla
1 film set in the woods
* The Birch
2/1 Kaiju or Kong film
* Son of Bambi Meets Godzilla
* Howl from Beyond the Fog
2 Hammer films
* Tales of Frankenstein
* The World of Hammer: Dracula and the Undead
3 films with a non-Asian person of color as director or lead
* A Night at the Table
* Skintight
* Hair Wolf
4/3 Asian horror films
* Howl from Beyond the Fog
* The Demon
* Human Form
* Sanctissima
1 Tobe Hooper Films
* The Maze
...