Broken - Overpowered.
OP - Abbreviation of overpowered.
Sidescroller - A game that occurs on a 2d plane and gradually scrolls to the side to show more of the level. See Super Mario Bros. or Mega Man.
Platformer - A game that is designed around (or has elements of) leaping from platform the platform skillfully. See Portal or Super Mario Bros.
RPG - Role Playing Game, a game where the player steps into the shoes of a protagonist, dictating their movements and guiding the story. See Final Fantasy or Pokemon.
FPS - First Person Shooter, a game where the action is shown from a first person point of view, "through the eyes" of the player-character. See Battlefield, Call of Duty, Halo or Half-Life
Player-character - The character in the story that the player controls.
NPC - Non-Player character, any character in the story that the player does not control.
Random Encounter - A battle that occurs randomly when traversing a game area. A common aspect of RPGs.
Experience - A common aspect of MMORPGs and RPGs, experience is usually gained through fighting enemies and other things and is the main way to level up a character.
Level up - To raise your player's abilities through training.
MMORPG - Massively Multiplayer Online Role-Playing Game, a variant of the RPG that makes use of online play and playing with other players, forming guilds and parties to fight larger enemies. Also called "MMOs" or "MMORPGers" (pronounced "mm-or-puh-gurz"). See World of Warcraft.
Guild - A group of players (usually in MMORPGs) who have banded together to help make each other stronger and help each other out.
Scrub - In fighting games, a player who uses a high-tier or spammable character, and overuses certain cheap attacks. Is not usually an effective strategy.
Tier - In fighting games, tiers are a way for the players to define which characters are the best to use and which are the worst. They usually involve in-depth study of advanced concepts like frames per attack, dash speed, the amount of hits before they become stunned, and attack speed.
Point-and-click - a genre of games, generally in the style of adventure games, that were popular in the late 80s-early 90s. Generally exclusive to computers (such as the Commodore 64), these games involve point at and clicking on objects in the game to find out about them, pick them up, and use them to progress through the game. Some would include combat, but it was usually either turn-based or very clunky.
Adventure games - A genre of games, usually point-and-click, but not exclusively, that involve searching for clues to progress through a game. Good examples include Tales of Monkey Island and the Sherlock Holmes series of games.
Turn-based combat - A convention brought over from the world of dice-based fantasy games, turn-based combat involves two or more fighters in an arena (either physical or metaphorical) taking turns to attack each other, heal each other (and themselves), and buff each other's stats. See Final Fantasy Series.
GOTTA TAKE A BREAK D: