About 3 main bugs programming errors. Like purchasing items that disappear from the buyable list but you don't get the item.
But the main grief is the poor AI it ruins the game in several places , where enemy platoons will rush up and then stop if the way is blocked after the attack starts and wait for your archers to kill them, not once but time after time.
That's enough from me as I might get started on the Creature AI.
The enemy AI is just bad, but there are a lot of little bugs in the game. Probably more than I can count on the fingers of both hands.
The wolf's snout and tiger's face for starters. There appear to be a number of problems with walls. The dynamics of the beach ball are really screwed up on the last Japanese land. False warnings about being under attack. A problem disbanding platoons on occasion. And I'm sure I can come up with a few more if I played for a while.