Backpackable! Use these handy dandy health bars in your project - just chuck the sprite in your backpack. Use "health" as the colour variable to get the beautiful dynamic colour you can see in the example, or pick a colour from 0 to 100 to use Scratch's colour picker.
Seems to work best when the ratio of height to width is at least 1:4 - 10 height and 40 width, for example. Your mileage may vary!
