It seems you said you've made the music, i liked it! Really fits the ambience and the mechanic of teleporting.
I would recomend a lot that you should highlight the doors because the look exactly like a normal wall.
About the V letter, it should have been fine that you put it some readable text like
"This big V has something writen. Press V to see whatever happens, yay!". Im talking seriously, these both problems almost killed my experience.
About the game, it has a lot of personality! Good choice of art direction!
*edit* I meant Great choice of art direction!