Use 111 strikes.
Use 2222 strikes.
Use 33333 strikes.
Build 18 units.
Build 8 units.
Build 28 units.
Kill 500 units.
Kill 50000 units.
Kill 5000 units.
Beat 10 bosses.
Beat 25 bosses.
Finish 100 waves.
Beat 100 bosses.
Finish 1000 waves.
Finish 10000 waves.
Open 125 boxes.
Open 25 boxes.
Open 750 boxes.
Destroy 500 level props.
Destroy 1000000 level props.
Destroy 12500 level props.