Hi, so a couple pieces of feedback. First is your platform spawning based on the width of the screen? I am using an ultrawide monitor and the first platform was always too far away for the player to jump to. When I changed my screen resolution down to a normal 16:9 aspect ratio the platform did spawn close enough to jump to. Second I would add a check to kill the player if they reached below a certain y level. If I ended up missing a jump and didn't run into a platform I would fall endlessly and have to restart the game to try again.