Welcome to Photon Flux! You have just been emitted from the Sun and are hurtling through space at 3x10^8 m/s as a lone photon with oscillating electric and magnetic fields. However, walls start populating space that come in three different colors: Red, Yellow, and Blue. You don’t want to be absorbed by these walls, so luckily you can change your frequency and wavelength to match these colored walls thereby passing right through them! Fail to match the wall color, and you will be absorbed.
Directions
Make it as far as you can by matching your photon’s color to the color of the incoming wall. Tap on the right half of the screen to increase your photon’s frequency (Red -> Yellow or Yellow -> Blue). Tap on the left half of the screen to decrease your photon’s frequency (Blue -> Yellow or Yellow -> Red). If your photon is already at the highest frequency (Blue), and you tap on the right half of the screen, your photon will wrap around to the lowest frequency (Red). Similarly, if your photon is already at the lowest frequency (Red), and you tap on the left half of the screen, your photon will wrap around to the highest frequency (Blue). You can always change to the desired photon color with only one tap as there are only three colors (Red -> Yellow -> Blue).