Since the simulator was originally built in Flash, you may need a specific player to run it on modern systems: Ruffle Emulator: Most users run the file using the Ruffle emulator
Kamen Rider Neo Decade Simulator (Version 3.0.1) is a Flash-based simulation that recreates the features of the Neo Decadriver, specifically focusing on the transformations introduced in the Kamen Rider Zi-O Core Gameplay Mechanics Henshin (Transformation): kamen rider neo decade simulator ver 30 1
Genre Adventure - Point 'n Click. Supports Gamepads! Gamepad support is built into this game. Plenty more like this here! Newgrounds.com [Flash] [EP.2] Kamen Rider Neo Decade Simulator Ver.3.0.1 Since the simulator was originally built in Flash,