If you stop playing you'll miss out on something or be left behind and unable to catch up.
"There are cross-over monsters in the game that don't appear to come back after their events are over. The constant limited time events and battle passes also add a layer of fear of missing out."
"Does leave you having FOMO when it comes to limited time cars that you couldn't obtain due to lack of time, currency, or both."
"At least 6 new characters a month, if you don't play an event you miss out on economy needed to complete"
"Constant timed event, unsafe PvP setting, daily rewards that you can't collect all at once"
"there is a daily challenge that resets at midnight. if you don't do the challenge on the day - it's gone forever."
"Fifteen day events with exclusive rewards that require a lot of time to get."