Hi there, we did notice the issue with resolution. As it's a game jam and primarily focused on mobile we didn't really invest time on making technical things like these work, so we left Unity to its own devices. I suspect the fact that we went for unsupported screen ratios caused this, but I don't know.
Was there anything in the game that you would like to see improved? The more specific the better, as it will help us improve the product, should we decide to take it to market.
Thanks!