How add obstacle in mi game

Help
#1

I’m creating a game called Fell Duck. I want to know how to add obstacles.

#2

Here is my gamefellduck

#3

looks like flappy bird but i hope u didnt mean us to play cuz thats a picture

#4

I know its a picture. The game isn’t finished yet.

#5

nvm I finished my gameFell_Duck.zip (2.5 MB)