Tetris.vim is tetris in vim, because every modern tools needs a way to destroy hard gained productivity.
Install via your favorite plugin manager or hand, start with te or \te
Learn more what a is with :help leader.
Basically, it lets you define your own namespace for commands so they don't
collide with other plugins or built-in features.
Originally from vim.org I simply packed it into a nicer folder structure and a git.
please check for there for license etc..