In this episode, Mr. Satan faces off against Perfect Cell in the World Martial Arts Tournament, but is quickly defeated due to a magnetic trap set under the ring. After the match, Goku steps up to challenge Cell. The fight begins with Cell using the Multi-Form technique to create multiple copies of himself, but Goku is able to counter this by realizing that the technique halves Cell's power level with each copy. The episode ends with Cell attempting to use the Makankosappo attack, but ultimately deciding to use the Kamehameha wave against Goku, which results in a massive explosion.
Here are the key facts extracted from the text:
1. Mr. Satan was knocked out of the ring by magnets under the tiles.
2. The magnets were turned on, causing Mr. Satan to fly due to the iron in his blood from eating spinach.
3. Goku is set to fight Perfect Cell.
4. Mr. Satan is recovering from a concussion.
5. Stretching is important, according to Mr. Satan.
6. Trunks' hair was shorter the day before.
7. Trunks decided to grow his hair longer.
8. The Multi-Form technique halves the user's power level with each copy.
9. Cell uses the Makankōsappō technique.
10. Goku does not create his own techniques, instead using those he has learned from others.
11. King Kai is watching the tournament.
12. The Kaioken technique was taught to Goku by King Kai.
13. Cell killed Goku using his own Kamehameha technique.
14. The beams fired into space may sustain their form if they do not come into contact with anything.
15. The King Moai has repopulated his new Arlia after over a thousand years.