Add a local (ie. not online) high score board to your game easily with this pack.
It includes an example project and documentation to help you add score tables to your own games.
Everything is C# code and very well commented. PlayerPrefs is used to store the data, so it's multi-platform and ready to go for whatever platform you're developing for. The code also supports multiple high score boards, just in-case you're adding leaderboards for different game modes.
If you're making an arcade-style game, this is going to be icing on the cake.. a nice local leaderboard just like the old games used to have!