There is ammo and health so be sure to watch both. the more points you score (top right) the better power-ups you get. The upgrades are health every thousand or so points and at 10000 you become invicible for a while and get a new (better) gun temporaroly. You get no more power-ups after 10000 points. Controls: Mouse to aim and shoot, Arrows (or W, A, S, D) to move. Kill the zombies! DO NOT DIE ! ! ! Now with store and 5 wepeons!!! click on the prices to buy the item note: glitch: the red/blue plus will probably be wasted ITEMS: blue/red plus - plus health over 100 red plus - health pack 3 grey bullets ($100) - plus 3 ammo (aka teporary extra large clip) Guns: starting gun (pistol) - press 1 $250 gun (uzi) - press 2 $500 gun (shotgun) - press 3 $800 gun (grenade[yes i know it's purple]) - press 4 $1500 gun (M16) - press 5 Special: HELP (next to 'points' counter) - kills all zombies and might only cost about $800 Hint: uzi and M16 are atoumatic (duh) so click and hold hint: when you get new gun at 10000pts just aim