Endless Scroller, Nice!!
I like the music and sound effects, it fits and the money hungry tooth fairy idea is kinda hilarious. However, i did find a few things that seemed to break my flow with the game.
Obstacles
Seems like the obstacles were hand placed. Personally, i would have gone with a more random placement. this is cause though this is a game jam game, i felt it was a little too repetitive, so having that random feature for the obstacle placement ( especially ) would make the game feel a lot more engaging.
Movement
Also, another feature i would iron out would be the movement, mainly when moving backward. my move Speed seems to slow down making it hard for me to properly evade the falling obstacles.
Falling Stars
For the Falling stars, since the background and overall look of the game is bright and cheerful, maybe make the falling stars black or dark grey so players know its an obstacle and not a pickup object... i literally rushed to get those falling stars at first until the first damage.
Over all, i think you did a good job with the Damage feel, else i would've just kept collecting those stars till i eventually died XD