Trailblazer is an old Amstrad CPC 464 game, by Gremlin Graphics, Pete Harrap, Shaun Hollingworth.
It has inspired me when developping Babal .
In-game screenshot. Trailblazer had different colors for level properties. You could be stuck on the floor, go faster, and so on.
I never owned this game, nor any machine capable of running it, but I played it a lot during a trip to Ireland. It was IMHO one of the best games for 8-bit computers, with a very basic machine, the authors managed to make something really fun, with an excellent gameplay, and you could play it for hours. So did I...