Those battle videos are almost as cancerous as reaction videos or videos involving James Corden

I dont get it, its just the gameplay

All little bit off topic, but if you want to relax with the Genesis, then try Contra Hard Corps, that game is a true gem.
Non-stop action, weapons, music and very decent execution (for example, the coders were rotating(!) huge bosses and objects with size of half the screen on a ~16bit machine without mode7)