In my opinion the Flash simulations look outdated and old, and should probably be "refurbished". Maybe if and when you "refurbish" the Flash Simulations, try to add a little more depth to the simulations. For instance maybe an option to change the camera view or something like that. When I found out about this site back in 2014, I enjoyed it, but I was also unimpressed with a lot of the Flash simulations, I didn't like how simplistic they were. Just a friendly suggestion.