Lexicon of the terms used on shoot'em up games, part. 4

This is the fourth part of the shmup lexicon terms. You can read the first one here : https://steemit.com/gaming/@ixindamix/lexicon-of-the-terms-of-the-shoot-em-up-games-1st-part
The second part. here : https://steemit.com/gaming/@ixindamix/lexicon-of-the-terms-used-on-shoot-em-up-games-2nd-part
And the third here : https://steemit.com/gaming/@ixindamix/lexicon-of-the-terms-used-on-shoot-em-up-games-part-3

Option:

Making its very first appearance in the Gradius series (some will find it an antecedent to Galaga), the option is an additional module supporting your ship or incarnation. Both defensive and offensive, this addition will become a crucial element in some "shmup", allowing to increase its firepower in the same way as a "Power Up". The options can be divided into orbs, modules or even animals and bestiaries of any kind.

Pattern:

In the video-play field, the pattern determines an adverse action produced by the developers and transcribed by the machine. As a whole, the enemy can thus possess a looping action pattern as simply moving from one point to another. It can also have variations and a chain of different movements, one after the other. In the shoot'em up, a pattern designates the movement of each enemy but also the range of shots of the opponents. For example, a boss will chain several different shooting patterns at an advanced stage in time or because of its own destruction. The difficulty is no less a factor modifying this aspect of gameplay.

Power Up:

Recurring bonus of this kind, if you exclude a minority of titles (Radiant Silvergun and Ikaruga in sight), the Power Up is an upgrade / upgrade that multiplies the player's shots. Obtained from duly destroyed enemy ships, this bonus is a vital part of the games that use this system of improvements.

Rail-Shooter:

Distinguished by a predefined course in a confined space, the rail-shooter is a branch of the shoot'em up and is a genre on its own. The player is not free to move, except the ability to shoot at places imposed by the game. However, some alternative branches allow to deviate from the base course. Appearing through the talents of Yu Suzuki and his system of zooms on sprite, the rail-shooter landed in the 80s through titles such as Space Harrier or After Burner. An interesting constant in this kind of games is the representation made of the protagonist in the third person back or in subjective view. This style will reach its climax in the 90s and 2000s with the advent of 3D. We can cite the Panzer Dragoon series, House Of The Dead, Time Crisis and much more recently games like Rez and Child Of Eden.