Heading for home!

Warpstone and any Grunt CheckPoint Switchez (CPS).
"Hah! I could get past this in my sleep !" ... and you're probably right!

Just put any Grunt on the right-hand CPS , then put the Warpstone Grunt on the left-hand CPS .
"Piece of cake!" All you need is a Grunt to stand on the Yellow Hold Switch (YHS)
while Warpstone carriez his burden to his assigned place.
You do have a Grunt available to stand on that YHS for a while, don't you?
If not, perhapz you should let Warpstone go first, then the other Grunt takez his place.

Now any Grunt can pick up the Coin just past the lowered CheckPoint Pyramid . Home free!

But wait! There's still a Green Pyramid (GP) blocking the way into the vicinity of the King's Fortress!

"Can comeone get that Green Toggle Switch (GTS) for me?"