Bug of grass 　　Spider bug

First of all, please look at the pictures

If you normally have to crush it aside cave
All of the spider has been stopped in a state that went up on the wall
Once you attack began to move in about one second after

Steps to Reproduce:
1. I meet the natural side of the spider.
2. Try approaching.
3. And it is when I stopped in a state that went up on the wall.

1.The change in an instant flower When you hit the grass of the two block.