You can get to the old main games page at (you need an account to see links), and from there look at the different categories/areas to find the games you want. Still there, just hard to get to. If you're wanting to play the flash games, you're going to need some additional workarounds, which you can find some info (you need an account to see links). Credit to @(you need an account to see links) for that, but not sure if there's a thread on clraik for it.
How to play Neopets games?
overthink.exe 
