please try some of my other projects. this is one of my most viewed ones. i've made much better projects than this.
each attempt, the wall has a 1 in 1000 chance to go away. which means you have a 0.1% chance of doing it each attempt. somehow i got unlucky and it took me almost 4000 attempts to do, but i had it on 100 speed. i put it back to 3 for your suffering :) i don't know if this is allowed on the demonlist or not. update: added a floor and roof for more suffering update 2: hid the rng variable