How to get some of the hidden achievements

How to get some of the ambiguous achievements, especially since they're not anywhere else online. You're welcome, that one person who might read this, ever.

Cheeese!!

Every now and then, once you finish a room, when you're collecting the stars, a photo booth might pop out.
You'll want to go there and stand still so they take a photo of you. A picture snap visual effect will happen, and you'll get the achievement then.

All Cheeessesses!!!

For this one, same as the Cheeese!! achievement, before you need to stand still for every single photo booth in the game and get a picture in all of them so it pops up for you. There's one in every level pack so you'll need to mostly finish the game to get the last one.

Delivery Done, Me Gone

A relatively straightforward one, deliver the box to the pipe, then kill yourself. Works on any level that lets you die.

Trailblazer

For this one, you'll need to go to a specific level in Huha's Blossom Town called Chain Reaction, and instead of going underneath the boulders, you'll need to climb on them from the beginning, and keep balancing until you reach the end.

Helpful Spirit

To get this one, you'll need to go to Puda's Rocky Ocean in the second level called Connecting. There, you'll find a little octopus buddy. You'll need to get him all the rocks from the bottom to where he's at.

Bonus: Sticker Pals

While this isn't technically a hidden achievement, it definitely felt hidden to us.
We had no idea how to add the stickers until we saw the achievement.
And even then, we spent a good 5 minutes looking until we found it.
Go to the hats at the beginning in the hub, and instead of picking hats, at the top left corner(if you're red or top right if you're blue) where you see the hand in the screenshot below, you can switch menus from hats to stickers. Then pick whatever sticker you want and place it on your jelly. You'll get this furtive achievement then.