Thanks so much for the detailed feedback! Really appreciate it. The game can be mastered, but I really should've made it easier, so that anyone can finish it without getting too frustrated.
Viewing post in Blazing Duel jam comments
These are my shaders, but they are very easy to make. There are three properties: main texture, color A and color B set to HDR. The main texture is sampled, then with the "replace color" node I replace color A with color B. Combined with post processing bloom you get a really nice glow that you can adjust as you want.