Me and my brother combined our money to buy Cyberia (1994). This was a fmv (full motion video) game, which still seemed like a pretty cool concept at the time. We bought it because we were really impressed with the demo, which came on a CD-ROM that was bundled with PC Gamer or some other magazine.

The demo was a section of the game where you were flying around in some sort of aeroplane. The only thing you controlled was the gun. The enemies were superimposed on top of the video, which was fixed.

I enjoyed the flying sections in the full game, but there were also parts where you controlled the main character on the ground. You could only move him between fixed positions and postures, because fmv. In some places you had to shoot enemies, which required very precise timing. This was too hard for me at the time.

I think I kind of regretted spending my money on it at the time, but only a little.