Thunder Heroes, a modified game of Guardian, it's not different from the original version.
This game is a slight modification of "Guardian".
After defeating the boss, they will join the team and become optional characters (but there is no robot boss). The system is basically the same as Guardian. If you want to play, you should play the original version.
After defeating the boss, they will join the team and become optional characters (but there is no robot boss). The system is basically the same as Guardian. If you want to play, you should play the original version.