VR safari park: a concept-based world building interface using blocks and world tree. - Shotaro Ichikawa; Kazuki Takashima; Anthony Tang 001; Yoshifumi Kitamura (VRST, 2018)

Be Bait!: A Unique Fishing Experience with Hammock-based Underwater Locomotion Method. - Shotaro Ichikawa; Isamu Endo; Yuki Onishi; Aoi Suzuki; Daigo Hayashi; Anri Niwano; Akiyuki Ebi; Yoshifumi Kitamura (VR, 2019)