For its second arcade, EFO was inspired by another classic of the era, "Berzerk", but with some changes that make "Draco" something different than Stern game, such as the development phase.

In the first level we have to break some sort of oval circles, grouped around a number representing the score, if we destroy the circles around them, automatically we'll destroy? the score. When we have eliminated all we'll pass level.
Of course, we are pursued by the enemies; they are something like copyright symbols, are fast and pretty furious.
After that we arrive at the second level, in which the numbers (or treasures as they call their programmers) are scattered around a maze, and we have to destroy them directly.

The third level is similar to Pacman, but it could be called "Paralytic Man against murderers brackets", what is what the enemies are.. and as our character has not a single frame of animation, hence the similarity. The goal is simple, to eat all the dots without be grabbed by the orthographic symbols.

From this point, the next two levels repeat the previous development, but with more bad blood if possible.
The game doesn't stand out either by graphics or sound, not even looking at the year of release, because a year before Berzerk had animations of the central character.
Besides this, changes of screen have a sharp scroll, which gets us confused.
Luckily, Draco has a "continue" which goes back to the same exact point of the level where we had stayed.