Nice job overall! Only one issue is the left and right movement (left and right keys) gets rather wonky when the camera is rotated in various directions. It becomes very confusing at times.
That's a great question, DANGA. I actually have been working on that but it's really difficult to make it look natural. If I think it looks somewhat realistic, then I'll post it as an update.
I'm not sure what that is because there have been so many different versions (and spellings) of it over the past few years. In any case, we do not allow user-to-user interactions such as "Tell me who you think the winner will be?" or "Vote for your favorite athlete" or "Tell me who won the race", and those sorts of things. Read the rules if you are not sure.
EDIT: Oh, I forgot to mention, it's Okay to chat about those things in the comments section of a scene. It's not Okay to chat with others in the scene or in the scene description.