Mars Matrix: Hyper Solid Shooting stage 1 +777 chain

This is a video that I got a while back of me getting a +777 chain in stage 1. Considering how bad the chain was in the 1cc video, on the first stage, I figure it makes sense for me to upload this. Something like 280k experience, which usually means 330k or more (350k? I can't remember) after the boss for me.
Interestingly: I actually did pretty poorly in the first 40 seconds or so of this video (+40 or so less than I usually like to get). Most of the chain is from the very last leg, which I haven't figured out a great way to do well reliably yet.
Might be useful to somebody?