Strange behaviour with multi-1x1px walls. How to fix it? A bug?

In my retro, pixel art game, I have created a wall, lets say 8x100px, made of 800 1-pixel blocks, placed next to each other.

The idea was to let the player destroy the wall pixel by pixel.

But there is a strange behaviour:

The player can literraly climb on that wall, like spiderman, because a player can walk onto 1px higher stage.

But, in my opinion, when the plyer climbs on first bottom pixel, should be stopped, because there is no space for him to walk foreward.

I hope I made myself clear.

Does anyone struggled with similar issue, and if so, did anyone find some solution?

haopl Please try and avoid multiposting like that - you should have the ability to edit your own posts (in the top right corner of a post there should be a button) should you need to add something later :)

If you can't see that edit button, please let us know!

Laura_D: You are right, sorry about that :-)

Absolutely :-)

animated:

imgur.com/a/XOcj2gj

still screenshot:

imgur.com/a/42qBAfz

I suggest that you could add a invisible object at the gun's head, to stop the player when it reaches the wall.