https://shmuplations.com/triangleservice/
Me being me, I was most interested in how in DeltaZeal, the theme for Transport Tracer (first boss, what I'm pretty sure "Transport Imitation" was an attempt at) was originally the st. 3A theme. Now if they had thought to give it to the Methane Hydrate Pirate at the end of st. 4 as well...