Apple II Screenshots
Hard Hat Mack Level 1: Lay the girders and use the jackhammer to rivet them
Hard Hat Mack Level 2: Collect the Lunchboxes
Hard Hat Mack Level 3: Drop the cubes into the processors at the bottom
Atari 8-bit Screenshots
Level 1 - grab the girders, put them in the holes...
...and then jackhammer them into place.
Level 2 - grab all the lunch pails, then...
...time your jump onto the conveyor belt so that the magnet grabs you and takes you to safety.
Level 3 - grab all the cubes and drop them into the processor.
Commodore 64 Screenshots
PC Booter Screenshots
That strange elevator (in the middle) looks unstable...
Level 2 - Involves a lot of jumping; Collect the lunch boxes before lunch break is over!