Super slick presentation and you did a good job easing the player into the game's concept. I like how literally you took the theme. There are a lot of potential puzzle mechanics to explore here. The main thing I would improve is the controls. I found the movement keys would often not respond after I jumped. And, for me at least, using the keyboard for everything then having to switch to the mouse just to change the flash type was awkward, though I understand you want to provide precision since it uses an action. Great game!