Thanks for the feedback!
I will definitely add some more twists to the game (I am planning sort of a boss encounter after some conditions are met), but I'm glad you liked the transitions! Regarding the wall strategy, I had tried adding an enemy that could set traps randomly through the map, as he didn't follow you, but I ended up scrapping it since it either added no challenge in the low spawn areas, or made the game ridiculously hard in the 5 or 6-sides. Maybe I could revisit the idea!