The AI is nothing like the arcades of old, the enemies will be more aware of their surrounding level, and some can jump over holes, or detect holes and avoid them.
James the ninja for example can follow you anywhere you go in the level, as he has the ability to change level planes just like Dan.
Jordan the gunman also has some better AI than old arcade games, and will duck and hide behind different level objects if they guard him from Dan ranged attacks.
Old arcade games didn't have for most of them much sophisticated AI, and still some games were great.
Shadow Gangs will have better AI, and I hope will be great as well.
The demo is progressing and I am happy with the result so far. Stay tuned!