Thank you for the trying the game. Appreciate the bug report and the feedback. I went back and fixed that bug and also updated the movement speed; based on the comments, I think I can safely call that a "quality of life" adjustment. As for the level design, I was trying to keep it easier as this was a game jam and didn't want to frustrate players (well, anymore than my slow character did). With a different approach for the player's perspective, I probably would have made the return levels more difficult by adding enemies on the return trip but your suggestion for more blocks and some hesitancy in regards to the story would also work to make it more puzzle-like.