After learning you can kill Yachie before the final spell with Nazrin's pendulums, I just had to try it. Strategy is simple, use level 2 to instantly kill big otters after scoping them. Nazrin's level 2 is released as a wave i.e. there is a delay, so immediately after using it you can deploy your scope to scope extra spirits before the wave reaches them, or re-scope any big otters that have reverted themselves to ensure they get destroyed by the wave.
It starts off slowly but if you diligently kill otters on your side, you'll send lots of spirits over to Yachie which she can then send back to you. This eventually gives you a lot of chain especially if you catch random enemies and bullets in the spirit explosions, automatically activating tons of free level 3s. Yachie will usually bomb or level 2 in response, killing a lot of spirits on her side and sending more big otters your way which starts a feedback loop. If there's any downtime where there aren't any otters on your screen, you can do some manual level 3s instead to continue the pressure or level it up.
Yachie's spells give lots of gauge, so gauge shouldn't be a problem once you get the ball rolling.
Unfinished Dream of All Living Ghost Statistics For Ripper Roo
At present, Ripper Roo has 454 views spread across 37 videos for Unfinished Dream of All Living Ghost, with the game making up 11 hours of published video on his channel. This is 21.21% of the total watchable video for Unfinished Dream of All Living Ghost on Ripper Roo's YouTube channel.