You begin the game with a Bare-handed Grunt .
Altogether, you will have two Gruntz at the end. The author's handle is "GooRoo"; the answer to where the other Grunt will come from is that somewhere along the line, the original Grunt will acquire a GooberStraw .
Use of a Tool such as this will result in baking a new Grunt.
So "use the Goo, Luke" (or whatever your name is ).
When given a choice, alwayz give a Tool to a Bare-handed Grunt .
You will use Megaphonez to call for the Toolz with which to equip your Grunt; otherz will be found under Rockz , and in Holez or Moundz .

Puzzle Concept:
You will need to repair the greenz as you search for Itemz to help you in finding the Warpstone, in order to return it to the King. You see, the King is planning a new Tournament, and he wantz you to change the pin placementz for the event. Coinz are nice to have, right? You never know when they might help, as to bribe an opponent into letting you by their outpost . There are also some Warp letterz; 'W', 'A', 'R', and 'P' which you may find along the way. So look everywhere for placez such thingz may be hiding.