I like beat old school beat em ups, some of my favorite ones are:
Final fight
Cadillacs and Dinosaurs
The Punisher
Vendetta
Double Dragon 2 NES
Aliens vs Predator
Captain Commando
Violent Storm
Streets of Rage 2 and 4
Knights of the round
Sengoku 3
Which ones am I missing? any hidden jewels or I should play?