I am not sure if anyone here has looked for a good snake game in order to bring back their childhood memories. But I have been searching on the market for awhile and I have yet found one that lives up to my expectation.
Finally, I found one that's good enough for me to keep it (instead of uninstall the game in 10mins after download). The game is called Snakey Train and it is a modern version of the old snake game. It has different background and graphics for different levels (altho the graphic aren't supre nice), and different powerups that you can eat to change speed or mode.
Afterall, I think my $0.99 is well spent!
Feel free to let me know if you have other recommendation for classic games!