Building Platforms returned in Make a Good Mega Man Level 2, and were used in the entries Quirky Unconsistent Incomprehensible Nonsensical Track, Gigavolt Man, Forgotten Fortress, But It Lacked the Depth to Convince Me That This is Really Hell, and Escape Sequence. They also appeared in Make a Good 48 Hour Mega Man Level, albeit in only a single entry: Volcanic Facility.
Building Platforms are formed from four pieces that fly up from the bottom of the screen before stopping to combine into one larger block. This block remains in place for several seconds, before disassembling back into four small blocks that fall back down. The individual pieces act as solid objects, and unlike in Mega Man 4, they are capable of crushing Mega Man if he stands below or inbetween them.