Inspired by a type of bee encountered at Wario Land 2, this bee starts moving in a sinusoidal-like pattern. When Mario gets into a customisable vertical and horizontal range, the bee stops moving some frames and then starts following Mario.
The download includes the original WL2 graphics, recolored to fit the Super Mario World style.
This sprite does not work well with upside down slopes, so take that into account when planning setups with it.
Updated with a better screenshot, PIXI version and slightly better code.
Just seeing this now! It's gonna be quite a long time before I have a hack to show off, but I have one in production! I'd be happy to use them in some of my levels. I have a garden level, and they would fit in perfectly with the giant flowers.