Fun idea, great work for your first 'compete' game! Very realistic since I feel like I'm failing my real life rolls everyday as well :P
As some others mentioned it ran a bit jerky on my laptop as well.
Thanks for the feedback on how well it ran for you! It's been interesting for me to see how it's been behaving on different computers; I've spoken to some people who said it was perfectly fine and others couldn't run it at all (granted, they were all using computers about a decade old). Something for me to keep in mind as I refine it in the future!