As a UI technical Artist working on Sonic Dash there is a lot of improvments that can be done. Because it is a game from 2013 and only on mobile which is supported on very low end device with not a lot of memory, there is a lot of old tech and unoptimised assets so there is a continous need to keep improving assets to keep our game small and performant as possible.
One of the biggest upgrades I did to the game was implementing the store in Dash. As we are a small team on the project I was involved with most of the process from Design all the way to the polish pass on the feature.