Rifter - 4R1D first time green shards
Showing all the green shards that can be got on the first visit to each of the 4R1D levels (first world). Thanks to a recent bug fix you can now get a total of 44 green shards!
Also got some orange/purple shards that require very little time to get, though we'll need to figure out which are actually worth it at some point.
44 shards puts you 1 away from getting the Fast Swimmer ability, however my main goal was to get Drop as early as possible. Shards seem to become a lot more sparse after the first world unless you're completing challenges, so it seems unlikely getting the later upgrades will be worth it in a speedrun.
With that in mind it might be best to skip 9 of these possible green shards and just get enough to get Drop, then forget about them for the rest of the run. Some upgrades like Speed Shield and Backflip Repulsor would be nice to have, but I imagine they'll take too much time to get.