Trilobyte - Robot Skip

In any%, you can skip the entire robot chase sequence. This requires Zero Fly (and as such will not work on Legacy Collection 2).

It is very possible to soft lock while skipping the robot, forcing a reset. It is recommended to have a safety save here for marathon runs.

MrCab Setup

This setup requires zero fly and Gigabolt's weapon.

At the start of the stage, there is a hill/mountain/landmass in the background. Zero fly straight up until you can no longer see the top of that hill. Release the fly, and hold left. You should fall beyond the robot.

Quickly dash to the door. As soon as you are within striking distance of it, use Gigabolt's attack (dash and special). You should hear a dink, enter the door, and encounter Vile.