I totally support this powerup!
EDIT: Basically this:https://youtu.be/LrAx8ZuCFyU?t=35s
I'm envisioning a sloped "shield"
in the front, basically the thing that the genesis rig had only turnable so that it always has the shap part at the bottom. It would function like a ramp for opponents hitting it, launching them into the air. It could also "uproot" mines
and fling them into the air, making them rain from above and exploding when landing for your opponents behind (screw realism in this case, the powerups have to be FUN first and foremost).
To balance it, it would have a very small active time, potentially with a mini speed boost added so you could still use the speed boost when nothing else is around.
And lets face it, other powerups so far are also utterly useless most of the time (gattler, scorpion).