This was really fun! Had a blast playing it! Almost like a memory puzzle type game! A couple of thoughts:
- I would add in at the bottom, some outlines of what the parts look like. Seems that it changes between different objects ever round and I had no clue what exactly I was looking for
- Make it so that once you are out of energy, instead of making the rectangle 'stop' growing (as it feels like a glitch) you could have the rectangle stop in white and continue in red around the area you have energy left for.
Overall Awesome work! Was fun and well polished. Very coherent! :D