If your game allows people to hold stuff: A small purple Stegosaurus that the player can pick up. It ever so slightly grows in size whenever you enter a new room. Once it is big enough you can use its tail as a ramp to get to a new area, otherwise inaccessible.
I second this. Got over 80 hours of playtime right now and it is a blast (when playing with friends)
The new season looks awesome. It won’t ever replace Titanfall 2, but it scratches the same itch.