WASD or arrow keys to move.
I decided to make a scrolling platformer for number 2 in the Just A Platformer Series. There is no lava here instead there is just bottomless pits. The Black line on the side of the screen is a spawner. Number 1: https://scratch.mit.edu/projects/282238242/ Number 3: https://scratch.mit.edu/projects/283344292/ @-DarkLite-