Microsoft is running a very special Halloween sale this entire week, discounting select characters’ Retro costumes for 50% off every two days leading up to the holiday on October 31st. So if you’re a player who didn’t purchase the Ultra Edition of the seasons, then this is an excellent time to acquire the costumes! Here’s the character retros currently on sale with the others to be revealed once their sale begins!

10/22-10/23 – Spinal Retro 50% off
10/24-10/25 – Mira Retro 50% off
10/26-10/27 – ???
10/28-10/29 – ???
10/30-10/31 – ???

Source: Ultra-Combo