How to solve the puzzle
Grunt	Description of what to do
Sponge Gun #3	Shoots a sponge at an Arrow (green line).
Gauntletz #5	Stepz on that Arrow (yellow line) and is pushed to another Arrow (blue line), and movez (as forced) along second blue line.
Sponge Gun #4	Shoots a sponge at an Arrow (red line).
Gauntletz #5	Arrivez at that Arrow at the same time as the sponge and is pushed to another Arrow (blue line), and movez (as forced) along third blue line to safety.