I really liked the concept here, the loop of doing a run, and getting upgrades, was satisfying. However, I think the balance holds the game back a bit, because most of the upgrades aren't worth it. For instance, getting coins per jump costing 100, it takes 100 jumps before it benefits you. It is by far more efficient to collect money and skip upgrades. If you tweaked this so the upgrades are more worth the money it costs to get them, it would be a much more fun game.
Besides that, it was a solid game. It could do with some platformer quality of life mechanics, like coyote time, jump buffering, and variable jump height, for which there are many, many resources online for. Overall, I enjoyed it, good work!