Hi, thank you very much for your feedback! I’m really glad you liked my game :D !
About the “too powerfull” weapons, I missed some times to play with the generation rules, and yes, the map is procedural :).
About the walls problem, I’m aware of it and it does not works as intended. If you read at the end of the game description (on the game page), there’s a note about the known bug and how to potentially get around them.
Once again thank you !