Thanks for the detailed feedback!
The red walls are now fire walls which hopefully better communicates that they are dangerous. I will be regularly making updates to improve both the onboarding and quality of life.
The latest update has a first pass on art for a few levels too! The current art is all placeholder. The final art will have more than just common colors to communicate to the player.
You can actually restart the levels from the menu when press "ESC". I'll make this more clear in future builds.
You made it pretty far! That was the last level in that build. You also had the right idea for the solution.
Thanks again for playing and glad you enjoyed the game. Getting feedback this early really helps me improve the game.