Firstly, I think the game is fun. I love the mode switching mechanic and using that to navigate the scene.
My major issues are that the scene is too small and switching mode takes too long. There is time between switching mode where you can't manually navigate, and depending on your current speed, you just hit an enemy no matter what as they fill up a big portion of the screen. With the sudden increase of speed and the length of time it takes to slow down, it makes it really difficult to control. My high score after about 7 attempts was 38 seconds left.
Reminds me of old retro games, which I love, just needs more space to move around in the scene.