1
Save for Gargantuar arrivals and high-value two-target scenarios rather than wasting on standard zombies
2
Combine with Cherry Bomb: Squash kills the two lead threats then Cherry Bomb clears the cluster behind them
3
In Endless Mode, always carry Squash as your emergency response for Gargantuar rush waves
4
Plant at the front row so the nearest zombie is maximally threatening when Squash activates
5
Use Imitater to copy Squash for a second double-kill per short recharge cycle