Operation Sheep Defense achievements

Kill over 100 enemies in a single level

Upgrade 5 towers in a single level

Finish a level with only rocket launchers

Complete the campaign

First level completed

First 65 levels completed

First 20 levels completed

First 45 levels completed

First tower upgraded

Kill over 1000 enemies in a single level

Kill over 250 enemies in a single level

First 10 levels completed