This one's a bit tricky for people who dont know, as you need to learn some tech to beat this These are: Downwards Corner Clip: When met with a thin wall (horizontal or downward) that separates two rooms, you can clip through it to go into the next room. Start by sticking on the wall, then tap left (not too much, or else you'll go off of the wall, or just hold right so you can hold as long as you want). This pushes Appel a little off to the side. Then press left again, but only right before touching the corner. This is frame perfect (but not that hard, since Scratch's only 30 fps), so it is a little precise. Make sure to be crouching for the entire process, even when clipping! Upwards Corner Clip: Same as Downwards Corner Clip, but with upward momentum. This is pretty hard to do on its own, but with a conveyor belt that is constantly pushing you up to the corner of a wall, it becomes really easy. The walls are only upward Forced Downwards Corner Clip: This is like a Downwards Corner Clip, but with only the crouching part. Mainly looks like a thin wall with the bottommost slab being in the ground, and the next room being one block lower. Invincibility Frames: When you die, your spawnpoint or checkpoint naturally gives some Invincibility Frames to prevent dying on the spot. The last checkpoint only has Invincibility Frames, the rest don't. Hitbox Manipulation: Go under a slab with a spring under, then uncrouch and after a bounce, you somehow stick your head into the slab (Spikes too). But do not crouch, stick, or walljump in this state unless it is safe to.
please read the instrucitons