The Ghostbusters' 35th Anniversary is an event that was released with the Ghostbusters' 35th Anniversarsary Update and went live on 27 June 2019. Like the two Ghostbusters events before, this event involves players collecting Ectoplasm by capturing Ghosts, Slimers and the Stay Puft Marshmallow Man. Energy weapons deal increased damage to them, and allows the player to complete the event faster. Unlike the other Ghostbusters events, this event is split into 4 trials each lasting 1 week, instead of 1 trial lasting 1 month. During this event, the Ray's Ghostbusters Equipment, Ghastly Pack, Grisly Ghost, Soul Hunter Pack, Slimer (Pet), Ghostbusters New Kit, Ghostbusters Weapons Pack and Egon's Ghostbusters Kit were on sale.
Trial 1
| Tier | Prize | Ectoplasm Required |
|---|---|---|
| 1 | x10 
|
Ectoplasm |
| 2 | 5x Ghost Clamp Traps | Ectoplasm |
| 3 | 5x Proton Grenades | Ectoplasm |
| 4 | x20
|
Ectoplasm |
| 5 | 5x Ghost Clamp Traps | Ectoplasm |
| 6 | Ectoplasm-Gold Converter | Ectoplasm |
| 7 | 5x Proton Grenades | 20,000 Ectoplasm |
| 8 | Dual Energy Pistols (+Ectoplasm skin) | Ectoplasm |
| 9 | Ghostbusters T-shirt 2019 (W) | Ectoplasm |
| Total | x30 , x10 Ghost Clamp Traps, 10x Proton Grenades, Ectoplasm-Gold Converter, Dual Energy Pistols (+Ectoplasm skin), Ghostbusters T-shirt 2019 (W)
|
Ectoplasm |