Zombie Hunter Badge acquired Oct 30, 2023. Kadaver Annihilator Badge acquired Mar. 24, 2024. Badge hunters be ready for about 5 months of daily grind. :)
For all you badge hunters out there, I've been able to consistently get a 3000km hole-in-one on the 2nd round of "The PentaPlanet Open" by aiming full power to the NW and letting my shot circle the planets once. Hope this helps you get your Hard badge without relying on luck.
 "One Among Zombies"){kind=icon}
 "Ultimate Assassin 3"){kind=icon}
 "Gravitee"){kind=icon}
 "Meat Boy (map pack)"){kind=icon}