Random Pico8 FX

I've seen on twitter and other places people using (I later learned P5.js and other programs) small maths calcs and loops to create interesting and cool visuals and I always wondered how they work and was curious due to these sorts of FX being used for menu transitions and the like, so I've endeavoured to learn more, these are the results of that, bit rough and nothing cohesive but I wanted to upload it anyway.

Press Z to cycle between FX and you can use the arrow keys to change the speed or even reverse it.