From the introduction:
We can all thank the many fans of the MA game for this material. I’m happy to say all the versions of MA are still played around the world. I’m constantly getting email with questions about this mutation or that creature. I’m also happy to say there are lots of families enjoying the game as the Dad or Mom started in the ‘70s and now play with their kids. The erratum contained on these pages is official and designed to enhance the understanding and enjoyment of the original edition of Metamorphosis Alpha, released by TSR Hobbies in 1976, and the electronic edition released by Mudpuppy Games in 2007.
Where possible, page numbers have been used to identify where the correction should be inserted, or listed in a logical order to help make using these corrections a little easier.