Based on Brendon Gettman's "We Call It Bowser" activity (https://www.altopedia.net/activities/568-we-call-it-bowser)
After passing out worksheets, use the Powerpoint to show students that not all characters have the same name in English and Japanese. They should be able to guess Koopa's name pretty easily. Then have the students guess the Japanese character matching each English name on the worksheet, then asking the teacher. If they're right, they get a point.
Alternatively, you can use this as a speaking activity warmup without the worksheets.
The powerpoint was sorely needed, thank you.