If the red-green thing had not been there, I think the game would have lacked feedback, so I am glad you kept it . It just shows how much of game-dev is just capitalizing on ideas and inspiration found during iterations on the core ideas.
I played it on a Google Nexus 4a and both the music and the visuals very running perfectly. The controls were slightly finnicky as there was no way to hold down a direction, but I got used to it quickly. (It was maybe even intentional?)
Again, well done!