Kingdom Rush - Acheivements

[WstHighlandRngr]

I have completed all the stages of KR except for one of
the acheivements. Specifically the "What is that" challenge
to open 10 of the enemies information cards. As simple as this
might be I have been unable to determine what I need to do to
complete this task. I would appreciate the answer to completing
this section. Thank you.

[Gorhan1576]

In the upper left hand corner, when there is a new enemy, a message pops up. When you click that message, a tiny screen pops up. It tells you the speed, strenght and how much lives it takes a long with a description of the enemy. Open ten of those messages (for enemies) and then you get the acheivment.

We trolls aren't evil, we are just scared that J.T. will destroy us

[Arcanereality22]

I have completed all the stages of KR except for one of
the acheivements. Specifically the "What is that" challenge
to open 10 of the enemies information cards. As simple as this
might be I have been unable to determine what I need to do to
complete this task. I would appreciate the answer to completing
this section. Thank you.

Unlock 10 enemies like the ogre, goblin and those.
If you've finished the game, you have to have this achievement.

[SJBlood]

Actually, I think that's not it. I think it is about checking the "tips" that appear during the first levels when you encounter a new enemy and possibly checking the enemy encyclopedia for ten different enemies.

[Julian]

When you play levels for the first time, there will be notifications
saying "New enemy!" upon encountering new kinds of enemies. If
you click those you'll get a bit of information about them. If you
completed all stages and never clicked at least 10 information
cards, you won't be able to get the achievement. Sorry for that :/

[spark123]

It'd be cool to see all the info bubbles stacked up under the hero.