Some games are played in real time; that is, the amount of time it takes to play the game is similar to what it would take in real life. Generally, these games are very quick and meant to be played without much reflection. Here are my picks for the best real-time games.
Brawl is a card game in which players try to beat each other up. Once you know the rules, each game takes less than a minute. Brawl appeared in the 2000 Games 100. For two players.
I saw a preview of Fightball at Origins 2002 and that was enough to convince me that it belongs here. A kind of futuristic football, players are trying to score points while also knocking their opponent out of scoring position. For two players.
This is a beach volleyball game for four, six or eight players. All of the normal volleyball moves (spike, block, pass, etc.) are available as you knock the ball back and forth.
Every player is simultaneously trying to find the best way to move a robot from its starting point to its goal. More of a puzzle than a game, Ricochet Robot is nonetheless a fun undertaking. There is no limit to the number of players.
All of the players are falling, most likely to their deaths. Since there's not much else to do, you decide that you want to be the last one to hit the ground. And the person who does that wins this game. For four to eight players.