Justice League Heroes - The Flash game is a ROM you can play online within your browser. This Gameboy Advance ROM runs in our top-notch quality emulator at PlayRoms.net only. Play Justice League Heroes - The Flash GBA game online in English USA version on your desktop, tablet, and mobile. If you liked playing this emulator then you will also be interested in similar classic titles Phoenix Wright Ace Attorney: Justice For All and Justice League Task Force. This free game belongs to the Platform and Action category of online retro games.