Walkthrough (Normal mode only)

Grunt Description of what to do
Bare-handed #1 Acquire Toolz (#1 thru #25) which allow you to break stuff and dig up stuff (acquiring Coinz #1 thru #71), move enemy gruntz around, acquire makingz for more Gruntz and eventually find the Warpstone piece .
Just move this guy around in a logical manner until a new Grunt may enter the game.
Then decide whether said new Grunt can really do anything; if so, use him until he is 'stuck'.
Bare-handed #2 Landz on a Tool (#26). Is there anything he can do with it? Then use it!
Stuck? Wait until something openz up.
Acquire Coinz (#72 thru #76).
Satisfy a CheckPoint Switch (CPS).
Bare-handed #3 Landz on a Tool (#27). Is there anything he can do with it? Then use it!
Stuck? Wait until something openz up.
Acquire Coinz (#77 thru #81). Satisfy a CPS .
Bare-handed #4 Landz on a Tool (#28). Is there anything he can do with it? Then use it!
Stuck? Wait until something openz up.
Acquire Coinz (#82 thru #86). Satisfy a CPS .
Warpstone #1 Acquire Coinz (#87 thru #90). Satisfy a CPS .
Carry the Warpstone Piece to the King!