Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Barber ( 10 points )	Kill an enemy by thumping them into a helicopter in the Mini City map.
Beat 'em down ( 40 points )	Kill every enemy in a wave using only the Teleportation in the Ulysses map.
Environmentalist ( 30 points )	In the Rock Quarry map kill an enemy using a Mine Cart, Oven, Fan, Smasher and Lava Cart in one wave.
Fast Track ( 25 points )	On Mean Street, kill all the snipers on the rooftop before the DNA bomb explodes.
Up-Lifting ( 20 points )	On Monorail Factory, kill all enemies whilst riding the lift.