THE GAME!!
In my opinion, it's harder than the go-karts. 
Blue plants, I remember some being in the Starting Beach, Waterfall of the Heavens (where the spoon is), Kujara Summit, somewhere in the Donglin Forest (I think), Water temple and that's all I can really remember.
Blue plants, I remember some being in the Starting Beach, Waterfall of the Heavens (where the spoon is), Kujara Summit, somewhere in the Donglin Forest (I think), Water temple and that's all I can really remember.






