Hey thanks for playing and your feedback. The bubble needs improvement for sure. The sandstorm audio is louder outside the bubble, but there's no clear visual edge because of the camera perspective. Some small highlight or animation on the ship when it's under protection maybe would do the trick.
The agency is definitely a fair point too. Time was simply too short to take it further. I was planning for the pyramids to give out powerups on activation, like a speedboost, increased bubble size or extra health, making the trips outside the bubble more forgiving. I'll take your suggestions to heart as well if I decide to develop it further.
Cheers!