⚠️ EPILEPSY WARNING! This project contains rapidly flashing lights. The mosaic effect creates some interesting moiré patterns. Lower the speed if you like, or back it up if you just passed by a nice moiré pattern. You can also switch costumes at any time - even if the speed is set to 0. This project actually uses 21 blocks, but only because I added controls for playback speed and costume. You can see the 5 blocks version in the disabled sprite.
I removed the color effect, increased the speed, and added several costumes (and made a bunch myself) and a slider to set the speed.