World Events are the new Side Quests and they're handled in a similar, but more seamless way. In the Leicestershire demo, there are nearly a dozen World Events with varying activities. One involved helping a hidden woman collect snake eggs in a viper infested cave, another had Eivor helping two idiot brothers torch a house after retrieving something important from inside, and the most ridiculously delightful World Event had Eivor tripping out on magic mushrooms and seeing seals slowly waddle their way into interdimensional portals. This method of tackling side quests made them more interesting to do, and Ubisoft has really nailed the World Events in the Leicestershire demo.
Charisma in Assassin's Creed Valhalla is leveled up through competing in rap battles that are heavily reliant on timing, speed, and rhyme scheme. Previous to seeing it in action, I saw this as a silly addition to a very serious Assassin's Creed installment. After experiencing these rap battles first-hand, I can confirm that they play well. My biggest issue with these is I can't see anyone failing at them more than once. Similar to the ease experienced in these rap battles, there are some standing stone puzzles to solve in the open world of Valhalla that I felt were extremely easy to solve. These puzzles give you an image while showing pieces of the image engraved in nearby standing stones. Basically, you have to stand at the appropriate angle to line up the standing stones to bring the pieces of the symbol together and create the image that the puzzle requires. These are fun and engaging, and a great distraction from the main storyline of Assassin's Creed Valhalla, but I felt that these puzzles are a little easy.