Descent - Insane-max - No Damage - Level 26

Hello, I was experimenting with new challenge, where the idea is not loosing a single shield during the level, not even by contact with walls. Really difficult I would say. And I'm not sure if all levels are technically possible at all... Before I tried this level, I was skeptical. I knew from speedrunning that it is not possible to go through the corridor that is guarded by green platformers from outside without a damage. Impossible. But since this is not a speedrun I could experiment with some different approach. I found out that if you shoot a missile in a correct way, he moves down and then you can go through without problem. But you have to be accurate and fast. Otherwise he notices and shoots you before you fire. He even notices you when he is fully outside of screen. Another place that was causing troubles was light drillers next to invulnerability. The solution is actually very simple. Just keep a mega missile for this moment. For some reason it took me a while to realise, haha. Played in D1X-Rebirth 0.58.1 with keyboard only.