Game watches for right arrow to go down and up. Just holding it down does not cut it.
There is nothing special in this game, but it turned out surprisingly exciting and was banned from the class on more than one occasion for the damage it did to keyboards.
I calibrated this game so that my best run over about 50 runs would be 10 seconds.It turned out that this number depends a lot on what kind of modules are attached to MSX. MSXs with network module attached poll keyboard noticably slower than normal ones, so results may be skewed.