Coding a game

Today I was learning how to code a flappy bird.

I enjoyed coding the bird.

What I found challenging was the coding.
This is my game. The link will show you.
https://studio.code.org/projects/flappy/et0B_gGsm8YOlp5LwLODdOryClDGjdp3_Zdvx7PcnMs

Crack the code

Today I was learning how to crack the code.
I enjoyed Cracking the code.
What I found challenging is the last slide.

Binary coding

Today I was learning how to make 45 using binary codes. Last year I did one and made my own.
I enjoyed flipping the cards.
What I found challenging is getting 45.