I loved games, and in my infancy I used to be an "adult playing observer", passing hours watching people inserting 25 peseta coins for additional lifespan in Gauntlet, or trying to consume all Out Run's in-game melodies and the colorful USA-wide scroll. Defender, Space Invaders, Galaxian or Donkey Kong are the first ones I remember, full of charm, in bars, mini-golf resources, or swimming pools near León, with a delicious smell to tapas.
Jetpac is a ZX Spectrum, VIC-20 and BBC Micro video game developed and released by Ultimate Play The Game in 1983. The game is the first in the Jetman series, and was the company's very first release. The game was written by Chris Stamper with graphics by Tim Stamper. Jetpac was one of the very few Spectrum games also available in ROM format for use with the Interface 2, allowing "instantaneous" loading of the game when the normal method of cassette loading could take several minutes.
In the game, Jetman has to first assemble his rocket (which comes in kit form), and then fill it with fuel before taking off to the next planet (where the procedure is broadly repeated). Along the way Jetman has to defend himself from the planet's aliens, and for bonus points collect valuable resources which occasionally fall from the sky.
After the first level, the rocket stays assembled and just requires refuelling. However, every five levels, the rocket is changed and the replacement has to be built before it can be fuelled for take off. Each new model has a new design with a higher number written on it, although the gameplay is unchanged.