Red , Green , Purple puzzle

Grunt(z) What to do to solve the mini-puzzle
Shovel #3
Gauntletz #4
GunHat #5
SpongeGun #6
Gravity Bootz #7
Bare-handed #9
Look at the CPSz to the south to see what is needed when you get to it.
You will see that the grunt that goes to the PMGS on the right side of the RPz maze should be GunHat #5, since he needs to pick up the Go-Kart .
You can alwayz play 'leap frog' if you put another (toyless!) Grunt there.
You navigate through the RPz by moving toward the GP , standing on it when it lowerz , get off it when the RPz change , get back on it when it lowerz again and moving to the next area when the RPz change again.
With this in mind move the 4 gruntz to the PMGSez in the RPz maze.
Success! You have now set two of your buddiez free at last!