Five Nights With Video Games 3

Story
A new Mario's Arcade is opening, but before it opens, the owner needs a security guard to watch the place from 12AM - 6AM. So, he hired you for the job.

Mario
If you see him in your office, put on the Bubbles head.

Pac Man
If you hear his waka wakas, put on the Bubbles head.

Space Invader
If you see two white dots in the left hall, shock him by pressing S.

Ryu
If you hear banging, open the door.