Unlock the following achievements by completing the corresponding tasks

Pterodactyl:
Find a way to defeat a Pterodactyl

Triple Pterodactyl:
Using default settings defeat 3 Pterodactyls in one game

Camper:
Stay in wave 1 for 120 seconds without dying while using default settings

Flawless:
Using default settings finish wave 1 without dying while

High score:
Using default settings get 1st place on In-game score board

Versus:
Play on Xbox Live Ranked Versus and gain the rank of 5

Wave 5:
Using default settings make your way to wave 5

Wave 10:
Using default settings make your way to wave 10

Wave 30:
Using default settings make your way to wave 30

Wave 100:
Using default settings make your way to wave 100

CO-OP:
Using default settings finish wave 5 on Xbox Live with another player

CO-OP Master:
Using default settings finish wave 20 on Xbox Live with another player