Soukihei MD Geist 2: Death Force

Series which aired on the Sci-fi/Syfy Channel's Ani-Monday block; Ani-Tuesday entries also included. Ordered alphabetically by their English titles.

Before the likes of Saint Seiya, Dragon Ball Z and Pokemon conquering the kids in the west, it was actually Akira that opened the door and made people realize that the cartoons coming from Japan weren't what you would expect from Disney or your TV channels.
A huge flood of VHS tapes came showing animations with mature themes, absurd plots, and enough graphic sex and violence to make parents freak out... what a glorious time!
They don't make cartoons like this anymore.

This is a comprehensive list with stuff from very good to very trashy, but all in the same spirit.
Some early 00's also included.

ps: I also recommend, but can't include here, the second Violence Jack movie, A Kite and Mezzo Forte.

Glorious 80's and 90's (Supernatural, Mystery and Horror)
https://myanimelist.net/stacks/30605

Every cinema or direct to video anime film that came out in 1996.

1995: https://myanimelist.net/stacks/34761
1997: https://myanimelist.net/stacks/34763

Disclaimer: There are a few hentai movies, that could be counted as well:
- Advancer Tina (1996)
- Choujin Densetsu Urotsukidouji 5: Kanketsu-hen (1996)
- Ginga Teikoku no Metsubou Gaiden: Aoki Ookami-tachi no Densetsu (1996)
- Harenchi Koumon Manyuuki (1996)
- Heisei Harenchi Gakuen (1996)
- Injuu Kateikyoushi (1996)
- Soap no Moko-chan (1996)

These are just some which I've seen and plan to watch. Includes movies and OVAs.
This list might keep getting updated.

Part 2 here : https://myanimelist.net/stacks/37380

You won't laugh with them, you'll laugh at them!