April Fools events
maimai
- 2013: セガサターン起動音 (NOT [H.][Remix]), playable on development cabs in SEGA only
- 2014: Site changed to "The world of three kingdoms", 犬日和。 sung by はっぴー (4/1 only)
- Revived in 2019 as 犬日和。(はっぴー歌唱Ver)
- 2015: 全世界共通リズム感テスト (4/1 only)
- Expert and Master charts revived in 2019
- 2016: Wonderland Wars オープニング (4/1~4/7)
- Revived in 2019
- 2017: Garakuta Doll Play ガラクタ総選挙, 犬日和。 宴 星 (3/31~4/6)
- GDP No.1 and 犬日和。 revived on 2017/06/22 (MURASAKi+ release date)
- GDP No.2~No.5 Revived in 2019
- 2018: 疾走あんさんぶる 宴 協, ミラクル・ショッピング 宴 蛸 (4/1~4/8)
- Playable normally since 2018/05/08
- 2019: 怒槌~光吉猛修一部謎~ 宴 宴 plus aforementioned revivals as 宴属性宴譜面 (4/1~)
- 2020: Site changed to "maimai でらっくす TSUKEMEN", 六厘歌 (postponed)
CHUNITHM
All April Fool WE charts were revived in subsequent years.