Good game, but one problem

The upgrades for the pick axe, boot, backpack, and mine support are screwed up!!! I fully upgraded the backpack and sturdier boot, but the pick axe and mine support-theyre gone!!! Because your stupid rip-off plan! Why the hell is it a one-time per level deal?!?! Bring them back to the bonus levels!!!!! THANKS!

videogamemaster98 about California Gold Rush 2