Buy a DE-10 Nano and get MisterFPGA running on it. It’s been great replaying arcade perfect classics like Pac-Man and Space Invaders and also being able to dive into classic SNES and MegaDrive games that I missed out on the first time around. Exploring some other totally missed systems like TurboGrafx which basically never got sold here or only at totally crazy prices has been fantastic as well. It’s got an amazing & friendly community building up around it as well.