By default you can only play as the human hunter. The other hunters are available through in-app purchase. Each hunter has three weapons (primary, secondary, and a melee attack). Ogre is has a particularly deadly melee attack that has a decent range.
Power-ups
Search for power-ups scattered throughout the maps. The health kit will fully restores your health. Use the double damage power-up for stronger attacks and the shield power-up for better defense. When not hunting down an opponent, explore the map and collect as many power ups as possible before your enemies find them.
Secondary weapons
Every hunter has a secondary weapon. Most of them function similarly to a trap or a mine. Set them in strategic locations, such as where a power-up or a warp pad are found. Note: The traps will automatically activate after a certain amount of time.