The game is quite cool, I liked the graphics and the gameplay. Maybe it could have been more challenging if there was some kind of timer or if there was some obstacles.
Although there's one thing that I didn't like much, and it's how the camera gets so close to the border when you're moving through the corridors. There aren't any enemies so it's safe but it still made me a bit nervious not knowing what was ahead.
By the way, are you japanese by any chance? I haven't seen many japanese themed games in the jam.