Only uppercase letters are used, except for the “Please enter name:” string
Font does not contain diacritics. See Luem as example
Logo and highscore screen use same font
Numbers on highscore use their own font, but might be graphics
Rest of text uses the same font
Semantic elements
The backgrounds and the title screen are the most meaningful elements regarding a narrative. They all pertain to a sci-fi hero story. The start screen introduces a barbarian with sword, according to fantasy tropes of the time (80ies). The game backgrounds often show the same character, a space captain, in different situations: personal fighting, intergalatic action, space travel. One shows the captain rescuing a half-naked woman, a classic damsel in distress situation. Two of the backgrounds are difficult to related: a noble alien, looking down on us while holding a staff and a space-wizzard, floating in space surrounded by spheres.
Some of the backgrounds have clear references to fantasy or sci-fi elements and characters of the time: Spaceship Death Blossom from The Last Startfighter, Dolf Lundgren as He-Man in Masters of the Universe, style and clothing from the TV series V.
Agents:: [Paddle, Bricks]
Environments:: [Space, Planet surface, Commando deck of spaceship, Hyperspace]
Characters:: [Barbarian, Astronaut, Half-naked woman, Space captain, Noble alien, Wizzard, Rider on alien space-insect, Skull monster]
Objects:: [Spaceship Death Blossom from The Last Startfighter, Hexagonal space-station, Sphere, Sword]