This is a possible summary:
Markiplier invites his mom to play Five Nights at Freddy's 2, a horror game where she has to survive the attacks of animatronic characters. He tricks her into playing the custom night mode, which is harder than the normal mode, and then helps her with the first night. She gets scared and excited by the game, and manages to win by a miracle. She jokes that the game is good for losing weight, and Mark thanks her for joining him.
Here are the key facts extracted from the text:
1. The video is of Markiplier's mom, Momiplier, playing Five Nights At Freddy's 2.
2. Momiplier had previously played the first Five Nights At Freddy's game.
3. The game has new characters, including BB, Toy Freddy, Toy Bonnie, Toy Chica, Mangle, and Golden Freddy.
4. The game is set in a different location than the first game.
5. Momiplier is playing a custom night, which is a harder difficulty level.
6. The game has a music box that needs to be wound up to prevent the animatronics from attacking.
7. Momiplier needs to check the cameras to see where the animatronics are and prevent them from entering her office.
8. The game has a flashlight that can be used to light up dark areas.
9. The animatronics can enter Momiplier's office through the vents.
10. Momiplier needs to put up a mask to prevent the animatronics from attacking her.
11. The game has a timer that counts down to 6 AM, and Momiplier needs to survive until then.
12. Momiplier successfully completes the custom night and survives until 6 AM.
13. The video ends with Markiplier thanking his mom for playing the game and announcing that she will be playing another game in the next video.