General
Reading Is Fun!: Collect 10 Intelligence Reports.
Chicks Dig Eyestrain: Collect 20 Intelligence Reports.
Too Many Secrets: Collect all Intelligence Reports.
In For a Penny...: Kill 3 Hybrids with a single grenade.
Fetch: Kill a Howler with a grenade.
Acupuncture Is Cheaper: Kill 3 enemies at once with the Hedgehog.
Why Are These Candles Screaming?: Unknown
Lovely Parting Gifts: Unknown
Tag, You're It: Kill 5 enemies with the Bullseye in 30 seconds.
Gasping for Air: Kill 2 Hybrids in a level only after severing all of 
their hoses.
Nowhere to Hide: Kill 5 enemies in a level by shooting them through a 
wall with the Auger.
Twirly-Whirly: Unknown
Turrets: Kill 6 enemies with the Chimeran Sentry gun.
Mechanical Thumbs: Unknown