A little tip for you guys. The game sometimes doesn't respond correctly. Mostly it happens when you have to do an action just after another that makes the game go into a "slowmotion" thinngy. If that happens then just spam the next action( pressing fast 2-3 times the key for the action should do the trick ) .
In addition to what trashantboy wrote: 5th level - new horseriders that chase you are added. You have to outrun them by holding d. If they come close to you, dodge their attacks by pressing s
You could add some hidden hero combinations that would give additional synergy and would be based on heroes background story. Let's say something like Noah+Carmen
Nice!! :D