I like the visuals and the effects, but found the gameplay confusing.
For instance, what was the purpose of switching the colour scheme at the lights? It seemed to do nothing other than change the visuals. Also, I wonder if this is something perhaps determined at the ending (which I never reached), but I could not find the difference between the coward and brave options.
If you are making a platformer, you really should have variable jump height. That is to say, you jump higher the longer you hold the button. This would prevent what I felt to be lots of cheap deaths, in which I could not see the ground or hit a ceiling spike, due to not being able to control the height of my jump.
I still enjoyed it despite my criticisms, so thank you for creating.