Which Grunt can do something about a Goo Puddle?
Which Grunt can do something about a Rock?
Which Grunt can do something about a Hole?
Which Grunt can do something with a Foundation Tile?
The Grunt goez on that square who has the Tool useful on it.
Each Grunt without a CheckPoint Switch
(CPS) in an area will trigger a Red Warp 
(RW) and go through the Wormhole to perform certain taskz. Do not hasten to return any Grunt through their return RW until you are certain there is nothing more that that Grunt can do! Remember, they will return to the exact same Tile from which they left, and it may be necessary to use someone else's square temporarily. Also, your 'assigned place' may be between the entry point and another Grunt's 'assigned place'. Return at the wrong time, and ... one squished Grunt. 
When it is time to leave this box, take Horace Greeley's advice and
"Go west, young man" ... unless it is best for you to go north.
3 BrickLayer, via the CheckPoint Switch 
(CPS).You are whisked away via a RW
to a place where you may put your tool kit to good use.Try to slow down that Rolling Rock
a little (with a Brick 
in its path), will you?(It is rolling over a Blue Toggle Switch
(BTS), that raisez 
(and lowerz 
) a Bridge Tile at the 'headwaterz' of the river just west of the 'Training Block' of the Sudoku puzzle.Ideally, that Bridge Tile will be raised
when the Rolling Rock is sufficiently 'slowed down' ... to inert pebblez.If it is submerged, a team member will have to raise it manually.
)No, you don't need to put down another Brick
... that one did the job.You may decide to pick up a Coin
(Coin #2) until it becomez clear what comez next.(Of course, you don't stand on Spikez
any longer than absolutely necessary!)At the proper time, you may go through the return RW
.