The instructions were clear, so I knew what to do. Remote grab sorting, got it. For a little while, I didn't realize the stealth/closer conveyor belt, so pieces were dropping from the sky, it seemed like. I like how the red crystals are indicated by warning signs on the rollers. At one point, no less than 6 crystals all spawned at once at the 'higher up' spawner, which was impossible to catch all together, but that's a minor quibble. I was able to save the world and that's great, having a win condition. If anything, either a different layout of conveyors for multiple levels and/or a different position for the player might have helped to vary the gameplay, but great job on putting it all together!