Shiro

Somewhat Missable if you do not die enough through one runthrough, however, with this being a challenging game, you will more than like achieve this with natural progression

A full playthrough for this game is required. (not your average Xitilon)
It is challenging in areas and requires skill but checkpoints are very generous.
There are three missable achievements all covered very early in this guide.

Enjoy and good luck.

Here is a video guide from the 4lonewolves collective achievement hunters.

There's a good spot shown in my video to get it done quick

Flight Section: 1:20
Forest Section: 3:00
Bamboo: 3:05
Die 100x:
Bird 1: 5:45
Bird 2: 8:45
Temple Section: 13:10
Bird 3: 16:15
Boss Fight: 19:35
Mushroom Cave: 21:30
Bird 4: 24:00
Bird 5: 27:05
Free Fairy: 27:10
Red Mine Section: 27:35
Save Sister: 30:40

Achievement Walkthrough: