The “E” is for “Einstein”. So says The Assembly Line, anyway, in this curious physics-based puzzler for Atari ST featuring “ray-traced” graphics.

E-Motion is the predecessor to Vaxine, which you may recall from our first time around the ST’s A to Z. This time around it’s all about bouncing balls around rather than blasting away viruses, but that doesn’t mean it’s any less hectic! The world of subatomic particle physics is, it seems, rather dangerous.

E-Motion drew praise at the time of its original release for its colourful visuals, digitised sound and unusual premise. Today, it’s still an enjoyable — if rather frustrating — experience, and a charming, technically impressive highlight of this era of gaming.

Find a full archive of all the Atari A to Z videos on the official site.