Noid'99 is released as freeware.
You can download the game and play as much as you want. No registration is required.

No installation is required. Just unzip the archive and run the game.

If you like this game, please try out the sequel Break GOLD and support my future development by buying a copy of the game.
If you want to thank me for my effort with Noid'99 and making it free, please feel free to make a donation as a token of appreciation. You may donate as little or as much as you like, it is the thought that counts.