Outline I used the Ctrl-# method to assign keypad numberz to each Grunt, top to bottom. (It is perfectly acceptable to do it your way, but the walkthrough may not make as much sense.)
Area 1	The Snowballz playfield
Area 2	The Bricklayer's puzzle
Area 3	De-populating the enemy's barrackz
Area 4	Finger dexterity exercise #1
Area 5	The Reluctant 'Partner'
Area 6	The Big Central Lake
Area 7	Rockz are flying!
Area 8	The Brickyard
Area 9	Oooh! Bombz!
Area 10	Walled in ... or out?
Area 11	Walking on water
Area 12	Pyramidz everywhere
Area 13	The foot race (and aftermath)
Area 14	Let's Wing it!
Area 15	The new recruit
Area 16	The big split-up
Area 17	The reunion
Area 18	Up. Down. No up! This'll be tough!
Area 19	Free at last!
Area 20	The final battle
Area 21	Cross Over The Bridge(z)