Turns out, they create a sandboxed Javascript runtime ... the researchers could hold the beads in place and use them to play Tetris. And for a little while, anyone could give the game a go ...

Tetris in PDF is an unexpectedly enjoyable game that uses simple controls. Thomas Rinsma created PDFTris inside a PDF document for user-friendly gameplay. Chrome or Firefox allows PDFs to run in a ...

it's made possible using the rarely-explored realm of PDF scripting, supercharged by none other than JavaScript. Here's a working game of Tetris inside a PDF. Even has keyboard controls (by typing ...

There’s a global community dedicated to finding new ways to challenge themselves in Tetris, from speedruning ... score—it’s an entirely new way to play the game. Thomas Rinsma, a security ...