Ultra Blocks Game is a website blocker extension for chrome. also, it is game extension. it's a free extension , it has 261 active users since released its first version, it earns an average rating of 0.00 from 0 rated user, last update is 525 days ago.
Classic tetris block game for chrome
You could download the latest version crx file or older version files and install it.
English.
You could find more help information from ultra blocks game support page.
You could send emails to publisher, or check publisher's website.
You could click to report abuse of ultra blocks game.