Great take on the theme. I was thinking some components were useless until I played the last bonus level. For the 7 levels, the oscillator, rotator and emitter could have been a single component, only additions needed otherwise. The bonus mechanics felt kind of broken but I managed to make something work.
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Thank you very much for your comment. I had planned for the rotator to have much more mechanical functionality than I was able to implement, so it didn't have time to shine. The oscillator though did end up being totally redundant in the final product, but unfortunately it was load bearing in my spaghetti code haha