it all depends what you like, but my personal favorites are angry birds and doodle jump check them out or review them.
Jelly Car
To be honest my fave ipod touch application is falldown :) it is the most addictive game EVER! i Love ittThanks
King of Trindor! A social game,a pretty good game
Modern combat 4: Zero hour
I think that the best game is ether cut the rope or lane splitter
i think the best portable game system would be an ipad or ipod touch if u ask me
The best music to put on an iPod Touch is the music you enjoy.
The three best scary maze games released for the iPod Touch are (in no specific order) Scary Maze Game Free, The Scary Maze Game, and Scary Maze Game (Prank)
Angry birds Temple run My town 2
it comea with the ipod
You can get any and all apps in the app store on your ipod touch.
Just Google Top iPod touch apps