Boss abilities/attacks ideas

Piecer:
You can have the barriers start disabled and have something enable them

Snowstorm:
Have a barrier with no collision start disabled. Make sure it has an opacity below 1 but above 0.5. Once it’s spawned in it’l make it harder to see.

Jumpscare:

Nostalgia:
Have the sentries start off disabled, and have something track the amount of sentries. While the sentries are active, have a barrier cover Day One, and once all of the sentries are gone (tracker says 0), disable the barrier around Day One.

Easier, less efficient sentry tracker:

Harder, more efficient sentry tracker: