Safe Stairs

Spoiler: Hint 1

For the first and second stairs, see the bot.

Spoiler: Hint 2

Use the dirt for clue in third stairs. (No dirt = safe).

Spoiler: Hint 3

For the last stairs, see the trees.

Very nice level! Easier to guess than your other code levels but still need to think a while before finally crack it. Nice use of hidden zapper. Thanks for the level @BLR

@Simple Design thank you very much my friend!!

Who need hint if u could let B died and try another stair till u win fun level my friend.

@anomalli if that you need alot of restarts thank you very much my friend!

Wow! Very original design.
The gameplay is simple on 4. But, I want to praise you! At this level (unlike your previous safes and codes) there are very good clear and logical hints! I like it.
I will give you a star for clear and logical hints. And of course for the SUPER interesting design! Well done. Thank you!

@Denis Nazin thank you very much my friend! I'm really glad you enjoy it. It always an honour for me to get comments and rate from you

Enjoyed the fun clues to follow!