Trun

Trun is a video game in the action genre and published by Blaby Computer Games originally released in 1986. It is currently playable on Dragon 32/64.

Trun is a series of small games made famous by the movie Tron:Cycles is a game of 'light cycles' in which you draw a line and must catch the opponent inside that line, without colliding with theirs.
Cone places you in a confined space where you must shoot the moving blocks in order to advance until you reach the cone at the top of the screen. If you don't advance, you'll be hit in the back by an advancing bar, and if you don't shoot the blocks, you'll be hit by them instead.
Tanks presents a top-down view of a maze, where you must guide your tank and shoot at opposing tanks.
Spiders consists of a screen full of spiders. Move your little man and try to shoot all the spiders (there can only be one shot on the screen at any time, so aim carefully) and then advance to the exit before time runs out. As you finish the four games, selectable from a menu, you will advance to the next level with more and more difficult enemies.

It is possible that we have multiple downloads available when different versions exist.