Red and Blue Sidesteppers have over 15HP, which means it can often require two hits to defeat them.
The Sidesteppers can only be damaged with Iron Boots/Shiny Iron Boots and Hammers. Always try to hit them with your hammer when initiating battles to score an extra hit. You can avoid most of them by walking behind or in front of them. These crab-like enemies can only move on a single path, left to right. Throughout the shrine you’ll encounter Origami Sidesteppers.
Toad Rescue #1: After fixing Not-Bottomless Hole#1 on the floor of the walkway, hammer the origami scarab crawling on the wall to rescue the Toad.