Isotopes

Isotopes are the main collectible item to be found in Dr. Muto. In chemistry, isotopes are identical elements with differing numbers of neutrons; AL requires isotopes to power the Genitor 9000.

There are two types of isotopes, with differing values. In order to unlock the 'True' ending, one must collect 3400 of 4250 isotopes, or 80% of all isotopes.

Blue Isotopes
Blue isotopes are the most abundant source of isotopes. They are often found in clusters along the intended path of travel, as well as crates. Blue isotopes are worth one total isotope each.

Green Isotopes
Green isotopes are somewhat rare. One will likely encounter green isotopes in secret areas, or in hard-to-reach places. As green isotopes are worth five isotopes each, they are often found individually, rather than in clusters.