Thanks for the kind words and the chef's kisses - muah!
Sad to hear you got stuck, but THANK YOU for the screenshot. I fixed the rocks there, the collider was a bit spiky, but I've also added a bugfix to self-destruct - hit the F1 key. There's no mineral cost to this - probably speed runner abusable but to flesh it out would be venturing into new feature territory :)
Many thanks for the feedback.