Kill 1000 aliens
Kill 100 aliens
Complete the Campaign in 45 minutes
Hold on for 4 minutes in Survive mode
Complete Campaign mode and improve the character maximum possible
Complete Campaign mode not using the shop
Complete the Campaign in 30 minutes
Hold on for 15 minutes in Survive mode
Stay alive for 10 minutes in Survive mode using pistol only
Complete Campaign mode
Kill 1000 monsters in Survive mode during one game session
Complete the Campaign in 35 minutes
Hold on for 8 minutes in Survive mode
Complete Campaign mode without death
Find all secret places in Campaign mode
Kill 100 monsters using pistols during one Campaign or Survive game session
Kill 1000 monsters with pistols during one Campaign or Survive game session
