Do you wish some good platformer? Try Stardash. I promise that you will jump a lot with enemies round you. Watch every step.
Jump and run to the goal, that’s clear. But you have to jump over pitfalls and destroy enemies. One mistake means returning to the beginning and trying once again, so be careful. The control is well done, just use arrows and jump. The levels are nicely long making the frustration to appear only occasionally. All is in retro graphics and retro music.