It seems that the ammunition does not regenerate on respawn so I downloaded the version with infinite ammo amount. The game is too hard. It feels like you operate mecha made from foil. No feeling of heavy armored machine.. However I managed to pass through the first mission. It was tough. But in the next mission I was eaten in a couple of seconds. Anyway the game is cool. And the creatures are funny. But in my opinion a couple of extra health points would make the game better