Thank you for your feedback, it is much appreciated! :)
- Yes, it is definitely something to keep in mind, to not mixing up keyboard and mouse controller if possible
- The feature of crushing obstacles does not have a level constraint, so it should have been possible to do it from level 1, but the distance should never be long enough before this mechanic tutorial, at least hopefully :)
- Not sure to get this point: just tried again and from level 13, clicking on obstacles seems to display the value fine