Here are some games (and series) I like:

• Just Shapes and Beats
• Project Arrhythmia
• Ace Attorney
• Danganronpa
• Zero Escape
• 140
• Kirby
• Mario
• Animal Crossing
• Super Smash Bros
• Warioware

Ones I haven't played but look interesting

• Touhou
• Yume Nikki
• Rhythm Heaven
• Parappa the Rapper
• Vib Ribbon