| 100% | ORK | 3 | Alien planet that appears in "Happy Days" |
| 51% | ORK | 3 | Planet name that appears in the name "Mork" |
| 46% | THETIME | 7 | Morris Day's band that appeared in "Purple Rain" |
| 46% | FONZIE | 6 | Henry Winkler's nickname in Happy Days |
| 46% | RICHIE | 6 | Ron Howard's character in Happy Days |
| 46% | BAIO | 4 | Scott who played Chachi in Happy Days |
| 46% | ARNOLDS | 7 | Name of the diner in Happy Days |
| 45% | BARADANIKTO | 11 | Alien words that save the world from destruction in The Day the Earth Stood Still |
| 45% | HALA | 4 | Fictional planet in Marvel Comics that is home to the alien race Kree |
| 43% | EMAIL | 5 | Message that appears in an inbox |
| 43% | SHANANA | 7 | Musical group that appeared in "Grease" |
| 43% | OBI | 3 | Band that appears in many Japanese performances |
| 42% | SHANANA | 7 | Group that appeared in the movie "Grease" |
| 42% | POPLARS | 7 | Trees that appear in many Monet paintings |
| 42% | SHANANA | 7 | Band that appeared in the movie Grease |
| 42% | ANT | 3 | Insect that appears in "B.C." comic strips |
| 42% | CIRCLES | 7 | Round patterns that appear in fields of crops |
| 42% | PLUTO | 5 | Planet that was demoted in 2006 |
| 41% | SCORE | 5 | Word meaning "twenty" that appears in the Gettysburg Address |
| 41% | SHARKS | 6 | Animals that appear in the fossil record before trees |
| 41% | THEN | 4 | In those days |
| 40% | DODO | 4 | Extinct bird that appears in "Alice's Adventures in Wonderland" |
| 40% | THE | 3 | Word that appears in ten of this puzzle's clues |
| 40% | TEETH | 5 | Mister Chuckle ___, toy monster that appears in "The X-Files" |
| 40% | MEERKATS | 8 | Highly social African mammals that appear in "Life of Pi" |
| 40% | ADO | 3 | Word meaning "commotion" that appears in a Shakespeare play's title |
| 39% | ERIE | 4 | Great Lake that appears frequently in crosswords |
| 39% | ANKA | 4 | Singer who appeared in "The Longest Day" |
| 39% | SELAH | 5 | Word of uncertain meaning that appears in the Bible seventy-four times |
| 39% | CENT | 4 | Word that appears in capital letters on the back of a penny |