Setup with visual cue 1 cycle + cs skip steward ( info in comments )
1. flash him
2. ZR + go on lock paint on the floor
3. Slam down-left one time then 4 time up-right
4. flash him, ZR and go to the up-left corner on the door paint on floor
5. slam down-left, up-left twice, up-right and finaly down-left or down depends on your position ( could be down-right too, depend on luigi position just try to do last slam oposite of the button spawn )