Do-Drop

Do-Drops, also known as Raindrops or Water Droplets , are a species of  droplet creatures in Yoshi's Story. Their names are a pun on, a small drop of. The Do-Drops first appear in Stage 2-3: Jelly Pipe. They are usually found in narrow passageways, where they come out of a rusty and broken Pipe. They have an acidic taste, and as such a Yoshi will receive damage if they eat one. Because they are a liquid-based entity, eating one will not produce an egg. Do-Drops are later found in Stage 5-3: Shy Guy Limbo, where they are dropped by clouds. They attack by bouncing off and colliding with any Yoshi in sight, dissolving themselves in the process.

Profiles and statistics
When it dribbles down, you may be caught off guard.
 * Shogakukan guide: ポタッとたれたら、思わずヒヤリ?!