Thanks for the detailed feedback!
I didn’t know about Z-undo. I’ll have a think about implementing a full-on undo system, but not sure if that will fit the overall game style I’m going for in the long run (it’s not exactly a pure sokoban).
Good idea with a secondary colour for ice streaks. I want the player to be able to see their previous attempt, but it does get mixed up with the current attempt. L-shaped streak added to the list!
I’ll investigate that movement bug too.