Both,
Bloodstained: RotN and
Crash TR: Nitro-Fueled.
I've already had my Crash fix for many years to come, but I'm hooked to the Grand Prix challenges and I'm saving Wumpa Coins for the eventual rerelease of N.Trance as a Pit Stop character. Also, I'm curious about future Grand Prix events.
Bloodstained is the real star of the show here. I've started it again and I'm having a blast. Again.