F - fly/jump ESC - Pause
Senpai The most normal character in the game. Just a regular flapping bird.
Headstart Get a headstart of exactly 4 points at the start of the game.
TopsyTurvy Vertically inverted gameboard but otherwise normal.
Dodger See those red lines? The space between them is the Goldilocks Zone. It marks the area where the next gap in the pipes would be. But once you enter that zone, you cannot leave it.
Confucius Get a random quote in place of the "Game Over!" text after every death.
Freeze If you've tried this character already, you might have noticed that he doesn't move or fall at all. This is a special character. A testing-mode that I didn't really use for much testing apart from the collision code. Everything is frozen when he isn't moving. To fly through the zone, you have to keep on moving him upwards or downwards.
UP - fly up DOWN - fly down