I just made two distinct levels, a tutorial level and a challenge level.
Tutorial:
Added text to canvas in world space explaining controls.
I also added platform effectors on top of ladders so that the player may stand on top of them, or press down to climb down them (temporarily disabling their collider for a short period when pressing down.)
To the right is a blue wall that is on another Tilemap I added a script to that removes itself once all enemies are destroyed.
Challenge Level:
Added checkpoints (in green) that you respawn at if you die.
Green goober is a “Trigoober” that turns the transparent blocks solid once hit!