Thank you! and thanks a lot for this feedback, those definitely need fixing. I've spotted the issues with the broken ship and blocked the walls off properly (it'll be in the next build) and made a note now on the other isometric scenes to review the collisions.
In terms of the platforming clipping issues, I don't suppose you remember the parts it was on, was it the areas you need to roll through or somewhere else?
Viewing post in Fall from Space (Game Boy) comments
One was just left of the cola bottle in the pit. "Left" might be a poor description, but I was fighting one of the creatures (either a 2-hit creature or a 4-hit creature) in between two blocks of stone, and rolling back rolled me through the wall to the right, slightly down, and (with enough jiggling) into the "hidden" cola bottle.
The other Time was in one of the abandoned indoor buildings, I think maybe the elevator building or the building with the oil? In the upper-left of the building I clipped through the ceiling, got stuck, and had to reload
The third time was in one of the cave sections where you exit a train car and can explore before going into the next traincar. I rolled backwards (maybe dodging an enemy) and through the wall, into the next cave section outside of a train car.
Sorry if that's too vague; if I catch the next build I'll pay more attention on my next playthrough.