The first video is a compilation of strats I used in Any%. It does not cover all the strats, but most of them.

The second video is an example of a run with picking up ZERO gas drops from enemies. How it could be useful? Example: You got 15-17 gas at the beginning of City stage and you need 15 gas for 5 arrows for the boss quick-kill. Instead of using arrow to kill 2 helicopters right before checkpoint, you can kill them with usual shots and save 3 gas for the boss. So basically this video contains strats to minimize gas usage at stages as well as picking up a lot of 10 gas pickups and weapons (they give +10 gas too). *I used 6 arrows at MegaVolt instead of 5, so you can have even 3 gas more.