On lvl 24: My builder with the chest made it to base just after my builder with the elephant fell to his death, yet it gave me completion for the level. FYI
Double post. If you are going to give us right angle cliffs in which to place walk pieces that do not have connections, the ability to create a bridge piece without first linking to a connection would be fantastic. Lvl 16 is a perfect example.
Arrow keys to scroll on the map would be great, as would hotkeys for the pieces and the ability to readjust already placed pieces. Fast forward as mentioned by others.
I'm enjoying myself a good bit, though some of the levels are frustrating.
 "Little Wheel"){kind=icon}
 "Cargo Bridge"){kind=icon}
 "D-Day Defender"){kind=icon}
 "Shopping Cart Hero"){kind=icon}