Tetris implemented in HTML5. Written by Choongmin Lee <choongmin@me.com>.

Almost compliant with the Tetris Guideline. T-spin recognition is nearly 3-corner T no kick, but will register on a triple.

The game has three play modes and goals as follows:

• Marathon (score the most throughout the 15 levels)
• Ultra (score the most in 3 minutes)
• Sprint (clear 40 lines as fast as possible)

It is currently on development. You can find the source code on GitHub.