Each of these games fits inside a single tweet.

An Out Run style game with a day/night cycle. Left/right to move.

You are a bird that must collect falling seeds in this arcade game. Up flies up, left/right move sideways. If you fall out of frame, you are just outside and need to move back in; if you fall below, all you have to do is hold up and you should reappear.

An idle/clicker game that fits inside the old tweet size of 140 characters. Restarts if your money goes negative. If you overflow the integer, you win!

All we are are but dust in the wind. Left/right moves.

A tweet sized autorunner inspired by One Way Heroics. You need to press a key to begin. Left/right move down left and down right, any other key moves straight down.

Fly through space with Star Fox style movement.

<3=<3 is a tweet sized kissing simulator where you choose your gender and your partner's gender. Z selects on the menu and then any key moves your saucy lips.

[As I make more tweet sized games, I'll try to add them here.]