Alternate costume:To unlock an alternate costume, pause the game and press Up, Right, Left, Down, Up, Left, Right, Down.Achievements:ACHIEVEMENT – HOW TO UNLOCKComplete Act 1 (20 points) – Complete Act 1.Complete Act 2 (25 points) – Complete Act 2.Complete Act 3 (30 points) – Complete Act 3.Complete Act 1 on Hardcore (20 points) – Complete Act 1 on Hardcore.Complete Act 2 on Hardcore (25 points) – Complete Act 2 on Hardcore.Complete Act 3 on Hardcore (30 points) – Complete Act 3 on Hardcore.Complete the Tutorial (20 points) – Complete the Tutorial.Von Helsing (25 points) – Crush an enemy to death with a spike.Open Sesame (25 points) – Open a physics or hinged gate in single-player mode.Zapp! (25 points) – Block or unblock an energy beam in single-player mode.Clap On/Clap Off (25 points) – Successfully used a TD switch in single-player mode.Combat Engineer (25 points) – Successfully raise/lower a bridge in single-player mode.Han Shoots First (25 points) – Kill an enemy by using TD and forcing them into the beam in single player.Use the Force… Field (25 points) – Kill someone by forcing them into a shield.Collect a Data Cell (5 points) – Collect a data cell.Collect 35 Data Cells (35 points) – Collect 35 data cells.Collect all 100 Data Cells (60 points) – Collect all 100 data cells.Deathrace 2161 (15 points) – Get 25 kills running over enemies with the TDV-1.Dragon