A game jam is a contest where you have to create a game in a short amount of time (usually 48 hours) and then present what you made at the end. I've participated in a few myself and some of the games turned out quite nicely so I figured I'd briefly show them off here
My favorite game jam game I've made. It's about a psychotic omnipresent news anchor, you play as his correspondent and try to survive the crazy news he reports. The game is high score based and the objective is to just survive for as long as possible.
In the future, I plan to add more levels, obstacles and chip voicelines, However for the time being the version that was made in 48 hours is still the current version
In this game you play as a robot that breaks out of your box at google HQ and you have to escape from the building before they capture you and put you back in the box. The main mechanic of this game is the robots "scan" feature that lets him mimic behavior he sees done by others. For example you can't move when you first start the game until you scan a rat who's walking around and gain its ability to walk.