I don't see this option in Action. How can I achieve this? Similar like @mikafabz game Makibot Evolve. Go to 0:21
You can play with the y-axis Jump Force value for a super jump. For the anti-gravity jetpack effect I would play with Air Drag, Jump Force and mostly gravity settings. It could also be an invisible platform that moves you upwards while a normal action gives you the replacement image/animation of a jetpack attached to the character. Lots of options to achieve exactly what you want