A parallax is where the movement of the mouse, in this case, controls the viewer’s perspective. If all sprites are not there, press the green flag again.
I remixed a beginners project. Sorry if that's a crime to you. I remix often. Layer 2 Diamond Sr.: RGB, GO, GO! RGB: YES, BUT THE BLOCKS LAGGING BEHIND, SOMEONE NEEDS TO CARRY IT! Layer 3 Textman: I've got an and I'm not afraid to use it :[ Sentient Fog: Why do we need this block anyway? Layer 5: Lazy Squares: Can you stop- Drawn Stickman: D¡E FOR YOUR S¡NS! Layer 6: Drawn Face: Run, run! ∏π: ...not yet! I'm not ready... to go... yet... Face of Squares: How? We gotta go! Layer 7: Sentient Laser: Uh oh... Batter: Time to h¡t these cr¡m¡nals! Basic Color Pallet: I GOT RIPPED IN HALF BY YOUR FRIENDS, ARE YOU HAPPY LAZY LASER?! Layer 8: Scratch Cat: Oh no! What will we do?! Armed Square: WE MUST HAVE THE BLOCK OF MULTI-COLOR, G00DBYE! Layer 9: Diamond Jr.: I struck gold on the vending machine!