Yes, I have.
But it does not allow you to go under robots. Or aim mid-slide.
In fact, the slide could be part of the jetpack tree.
Just saying, but robots aren't big enough to be slid under. Maybe if there were big brute robots then yeah.
Under robots jumping?
Between robots legs moving?
Brute robots? I thought that their torsos would've been out of reach.'
You can just normally walk/jetpack a jumping robot.
Unless you turn into like a ball kind of thing in metroid, I'm pretty sure the body can't slide between the robot legs.
It is a good idea though. Maybe instead of sliding, there can be a sliding kick. It can be activated while kicking during a boost/jetpack thingy.