Thanks for all the feedback !
Don't hesitate to lower the difficulty should the game be too hard. But we take all feedback into consideration and we will try to get more playtesting done to adjust the worm boss :)
The door backtracking issue was indeed a bug and has been fixed in hotfix h1 ^^
A map is definitely something we want to add for future releases. It would just have delayed this release too much though.
I'm glad that your overall experience was still fun though ! Glad you like it :)