Ds 20 Sail Boat Which Gameboy DS Game Would A 67 Year Old Guy (who Has Been Playing Only Tetris For 20 Yrs) Like?

Which Gameboy DS game would a 67 year old guy (who has been playing only Tetris for 20 yrs) like? - ds 20 sail boat

My father played games like Tetris and more than 20 years.
I would like to make a Game Boy DS touch screen for his birthday. And he wants to know the other side (s) that you might like.

He has been playing Tetris 1h/day day of the week and at least 3 hours per day on weekends.