Find a frog

Frogs at our power plant taught us a new game called "Find a frog."
It's very exciting game so I thought I'd share it with you.
(Caution: not recommended to people with ranidaphobia)

Rules are easy: Look at the picture and try to spot a frog.

1.

Can you see a frog?

 If you can't see a frog on the first picture↑, try the next picture↓:

2.

Any frog there?

Can you see a frog? If you don't spot the frog until the second picture (above), you lose the game.
You need more training in frog-spotting.

Check the next picture.

3.

I'm here.

The frog is subtly smiling. She just won the game.

4.

The winner.

Here's next round:

1.

2.

3.

4.

Did you win?

Final round:

1.

2.

3.

This was an introduction to "Find a frog" game.

Once you master "Find a frog", you can move to the next level "Catch me if you can."