I don't know how anyone managed to compile this data together, but these are the top 20 Namco Originals selected on Taiko 0 (as in, top 20 based on most number of plays). Extra bonus if you like wacky Nicovideo comments and rhythm game references!
- Angel Dream
- Ao no Senritsu
- Hatsune Miku no Shoushitsu -Gekijouban-
- DON'T CUT
- Saitama 2000
- Red Rose Evangel
- Pastel Dream
- DON'T CUT (Ura)
- Black Rose Apostle
- Tenyou no Mai
- Blue Rose Ruin
- Kita Saitama 2000
- Hyakka Ryouran
- Rotter Tarmination
- Shimedore 2000
- Mekadesu
- White Rose Insanity
- mint tears
- My Mine
- Taiko Time