I agree with juzsper, Task Manager's telling me that Firefox and the flash plugins are using between 1.5 and 2GB of RAM - only playing this game, nothing else open
I agree with the comments made about the controls being a pain. Maybe accelerate could be space while fart could be mapped to F so that we don't have to move the mouse between the two.
As a way to reset recoil and ammo for a gun (Not those with one in the clip) you can press "z" then "x" really fast to switch guns and back the one you were using. Switching guns resets the ammo count for that gun and the recoil. Better than waiting for the reload to finish. For maximum efficiency, switch when there's 1 or 2 ammo left.
Just a suggestion - After the ive single player missions you should be able to do what you do in multiplayer, except by yourself, so an option which lets you to make your own scenario and go solo.
I wonder if we could possibly see a stats page with stuff such as: kills, favourite weapon, kills/weapon, kills/class, games played, accuracy, number of deaths, headshots, times headshotted, etc.
I reckon there should also be a 'custom game' option after you finish the last boss where you pick a map, number of opposing teams, and how many people per team, what armour they have and the AI difficulty. That in addition to badges and multiplayer.
See, when I click 'Info' in the upgrades menu, I want to see what that upgrade does, not how many Kreds it costs, and what other special things I can get if I paid Kreds.
I love the game. Simply great. A good end-level interface as well, which a replay, next level, level select and upgrades. It would be awesome if there was a 'stats' page, with enemies killed, types of enemies killed, shots fired from each weapon, how many 'superpowers' from each weapon used, favourite weapon, etc.
 "Freeway Fury 2"){kind=icon}
 "Tesla Defense"){kind=icon}
 "Earn to Die"){kind=icon}
 "Valthirian Arc 2"){kind=icon}
 "This is not a minimalist game"){kind=icon}
 "Bear Grills"){kind=icon}
 "Super Duck Punch!"){kind=icon}
 "Cyclomaniacs Epic"){kind=icon}
 "Bearbarians"){kind=icon}
 "Insectonator"){kind=icon}
 "SAS: Zombie Assault 3"){kind=icon}
 "Strike Force Heroes"){kind=icon}
 "Sugar, sugar 2"){kind=icon}
 "Arcane"){kind=icon}
 "Kamikaze Pigs"){kind=icon}
 "Civilizations Wars"){kind=icon}
 "Bloons Tower Defense 4"){kind=icon}
 "Guardians of the Light"){kind=icon}