To release a Blocker in a non-destructive manner, use a Miner to + dig away the ground underneath it.
+ +If you have a Builder, a Digger, and a Miner, and you want your + Pingu to mine down and to the opposite direction of that which it is + facing, try this trick. Turn it into a Digger momentarily, and after + it's down four pixels or so, turn it into a Bridger. It will attempt + to build its way out of the pit, but then turn around after two or + three steps. Now you can have it mine in the opposite direction.
+ +If you have a Blocker holding in your Pingus, and want to get just + one Pingu past it without blowing it up, build a bridge that would go + over the Blocker's head. Then watch the Pingus falling off the end + of the bridge. As soon as one falls past the Blocker, make the Bridger + a Digger. This stops the rest from getting past.
+ +If some Pingus are stuck in a pit, they can be freed by numerous + Bridgers planting stairs in a zig-zag pattern upward. Each Bridger + starts building to the left from the top of a right slanted staircase + (which has run into a wall), and vice versa.
+ +Use one Pingu to blaze a trail across the screen, and then release + the others once the route has been completed. Often the Path-finder is + an Athlete (Climber and Floater) but not always. If the screen has + several trapdoors then you probably need one Path-finder per entrance. + In the latter case it's best to try and deal with each trapdoor + separately; trying to handle them all at once and skipping from one to + another is usually doomed to failure.
+ +If a group of Pingus need to fall down from a high structure, and + you don't have enough Floaters, you can use a Digger Pingu to create a + step for them. If the drop is twice as far as the Pingus can fall, or + thereabouts, Have the Digger tunnel down right at the edge of the cliff, + and then stop half way. You can stop it by turning it into a Builder. + Then the Pingus will fall twice, once to the step the Digger made, and + then to the ground below. If the drop is farther than that, you can use + multiple Diggers, staggering them Creating a series of steps.
+[FIXME: insert Free Software yada yada here]