EfficiencyG 30

Kill every enemy on a level using less than 50 bullets in either Tournament or Single Event.

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Here are some cheat codes that will turn you into a ninja while you're on the Gamertag Nation site.

Keypress	Action
`s`	Move focus to site search box
`r`	Move focus to quick reply box in a thread or message
`n`	View the first unread post in a thread
`f`	Toggle and scroll to filter options (on select pages)
`?`	Toggle keyboard shortcut help dialog