Ok so I know Halloween is over but I hear many schools are still doing their Halloween presentations this week and next. I thought I'd upload my powerpoint that I made as well as some craft ideas which really got the kids jumping up and down. The powerpoint is rather large but it has tons or gifs and some sound effects (which kids of all ages loved).

The power point is an introduction into Halloween and is a great way to get them learning the vocab of the costume characters and learning to say 'Trick or treat' (I must warn you though I believe there is an error in the Korean translation on the 'Let's practice' slide). The video link is a bit buggy and I will attach it here as well for you to add in again if it doesn't work (it has Korean subtitles). The costume character vocab is really fun but some could be a bit scary for the younger learners (I found) so I have made alternatives for those slides that are hidden just before or after the scary ones. At the end of the slides, I have a gif for the different activities I did with the different grades as well as either doing a bingo or crossword to practice the names of the costumes.

And enjoy! (if you want any other materials I used for any of the games just let me know ^-^)

Hi there, I am only seeing this now and am so sorry.
I'm not quite sure which games you are referring to exactly. If it is the bobbing for apples and mummy game then no sweat I'll explain a bit more.

The Mummy Game: Divide your class into teams (ant number would work but I found it is more effective with 4 or 3 in each team), ask one person from each team to step forward to be the mummy. The rest of the team will do the wrapping. Make sure you have clear enough space in your class for each team to be able to move around their mummy freely. Each wrapper in the team will receive a roll of toilet paper (I now this is quite wasteful but my school really liked this idea and didn't  mind). The mummy in each team must stand perfectly still with their arms tight against their sides and legs together. On your mark, the other team members must hurry to completely cover their mummy in toilet paper (either until you can not see the person underneath any more or until each person has finished their roll of toilet paper) the first team to finish and the nicest looking mummy, wins. I was monitoring and taking pictures of mine throughout and when it came to wrapping the mummy's face I just made sure to tear a little hole big enough for their nose and mouth to get fresh air. The kids loved it. After it was done and the winner was announced, I then told all the mummies to raise their arms like real mummies or zombies and break out making groaning sounds. They went bananas!

The bobbing for apples Game:
Again I made divided the class into team ( two big teams worked better, but it also depends on your available materials). You need two buckets or large bowls with 2 or so towel handy next to each bowl. Place enough apples for each team member in their team's bowl, although the apples in Korea are huge and could be a bit awkward for small learners (my one school's learners managed no problem but my other school didn't like the idea and got tangerines instead). Now fill the bowl with water until the fruit float and the l\water level is about double the volume of the layer of fruit. Teams must stand in line and one-by-one take turns to fish out a fruit with their mouths. Let them hold their hands behind their backs. Once a learner has bitten a fruit he or she may not change to another fruit. That member must keep going until they have caught that fruit and then it is the next team member in line's turn. the team that has caught all the apples first wins. This is a great game but be warned the water will mess out of the bowl and the learner's faces will be soaked hence the towels.

Hope this helped and was what you were looking for!