Thank you so much for the support! Seriously means a lot that you picked it up early and are excited to see more.
Multi-tile entity (like 3x3 tile bosses in OneBit Adventure) is absolutely something I want URF to support. I'll post the roadmap for upcoming updates once the core debug tools and save versions are finalized in the next build.
Video tutorials are also planned. My goal is to start with a few focused ones (project setup, turn engine flow, extending entities, etc.) so new users can get it up and running quickly while understanding how to work the framework.
I appreciate you taking the time to share feedback and for supporting the project this early! It will help me shape where URF goes next.