Flappy bird in less then a tweet of Javascript!
https://www.dwitter.net/d/13750

c.width=99
T=t?T+1:0
X=99-T%120
Y=40+9*S(i=T/110)
T&&y<99&!(X>0&X<24&(y>Y|y<Y-19))?y-=W-=.03:(T=W=0,y=25)
for(j=2;j--;x.fillRect(X,Y-125*j,19,99))onclick=v=>W=1
x.fillText(i|0,19,y,9)
After you play that, check out my LD44 entry SPENDOTRON: 2019!