Hello, thanks! Here we need to stand by the trampoline on the right, move the trampoline to the left, to the stone. And then jump onto the trampoline up, there will be an exit from the tree.
This is a lever that turns the heart above the trampoline, which can be taken if the mouse takes one of ours. To move the trampoline, you need to have the character standing to the right of it, and then just walk left. This way the trampoline can be moved, just with a character.