The Apollo Experiments

You are participating in possibly the most advanced scientific experiments ever; the ability to control pure light. Not physical light sources like lightbulbs or fires, but pure, unadulterated light. However, light at that intensity is, on its own, invisible to human eyes if there's nothing to reflect it. As such, you need two things to find yourself: shadow and perspective. Use them wisely to complete the trial runs and look out for the full version.

WARNING: This experiment will be difficult. You can retry as many times as you can, but all levels that have been released are proven to be possible. Some even have shortcuts and secrets. All it takes is a bit of perseverance.