It Came from Planet Glurg copies exactly what was printed on the original creatures and nothing more (unless any of those creatures are copying something else or is a token; see below). It doesn't copy whether that creature is tapped or untapped, whether it has any counters or stickers on it, and Auras or Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, and so on.

If an effect needs information about the creature's name, it looks at all its names to determine that information. For example, if It Came from Planet Glurg becomes a copy of both Blorbian Buddy and Rat in the Hat, it has six words in its name. The first letters of its name are B and R. A creature with alpha strike whose name came before Rat in the Hat alphabetically would have first strike while in combat with it.