Which version did you play. I can't guarantee, that the web version is perfectly accurate to the proper downloaded version. And due to big graphics and lots of objects and cpu particles, the framerate may not be completely smooth (i should implement a fps meter someday). The sprites are also not entirely accurate to the hitboxes. I maybe should make the bounds to be clicked slightly bigger, so it's easier to click them 🤔. Fun fact: i also implemented it so you can't create an obstacle too close to your character, to avoid creating one inside your character, which would allow you to climb back up. But that should not interfere with the removing of obstacles
Anyways, thanks for playing :D