Shared below is footage from the #KamenRider mobile Flash game 仮面ライダー電王　走れ電王クライマックス (Kamen Rider Den-O Run Den-O Climax). Browser Flash games were published on Japanese flip phones because they could run on any device regardless of J2ME protocol (DoJa, BREW, S!Appli)
https://www.youtube.com/shorts/NC8T-4pUjcY