We know Slimer can make a gooey mess and is generally harmless, but can the sticky spirit from beyond make you a better player in Rocket League? Probably not, but you can deck out your ride with a Slimer Topper, just as soon as you complete the requisite challenge as part of the timely Haunted Hallows event that is starts today (likely live

Source: Hot Hardware – Rocket League Haunted Hallows Event Brings Ectoplasmic Ghostbusters Crossover