Microban IV (by David W. Skinner)

This is the last of the four (complete) Microban sets made by David W. Skinner. It contains 102 levels , was released in August 2010 and includes a series of alphabet puzzles. Here are Microban I, Microban II and Microban III. Mobile-friendly version/source code: https://auroriax.github.io/PuzzleScript/play.html?p=bdb674a685de8f1c7a1e7e16da83... If a puzzle doesn't display properly, use the fullsc…