Growing up with Nintendo games, book style DS games have always had a special place in my heart!
Rhythm Heaven
Rhythm Heaven was one of the first video games I was exposed to as a child, and it's played a large influence in my musical and cultural consumption. The book style "gimmick" worked perfectly with the ds game, and I spent hours grinding levels to get perfect scores and unlock mini games. I was drawn to the cheerful characters and catchy songs, and the satisfaction of having perfect rhythm in my gameplay catalyzed the start of my rhythm game journey. One of my favorite levels was the fanclub monkeys because of the song and silly concept!
Brain Age
My most used console from my childhood was the DSi XL, which came with the brain age express series. All of my games were on cartridges as I did not buy any games digitally, which meant that brain age express was often the only other alternative series I could play. Fortunately, I loved spelling and art! I enjoyed comparing my artworks with friends and family, unleashing a competitive streak within me.
Hotel Dusk
Wishing to play a Shu Takumi directed game, I looked into buying ghost trick which I quickly abandoned due to its resale price [prior to the remaster]. I picked up a copy of hotel dusk instead, and sparked my love of ds games again. While the gameplay and story has its flaws (difficulty of progression and puzzles), the extremely charismatic dialogue is unlike any other game I have played. I also enjoyed the artwork of Taisuke Kanasaki, whose rotoscoping direction only added to the uniqueness. Although I was not able to fully enjoy the games from Cing INC. as much (namely trace memory), the quirks of the book style puzzles leaves a charming impression.