I kept being so shocked by how much content there was in this game. It's HUGE! Had a great time with this one as it's fun to keep exploring around the place. Fixing the bike was very satisfying.
I will say that I used the speed-up cheat, and I found that at that speed, the game was actually a lot more fun as I was able to zip around the place from mine to mine collecting my goods. It might be fun as well to add a minigame of some kind when you're exploring mines, just so the player isn't awkwardly waiting for a loading bar as part of the gameplay.
Super impressive entry, great job and well done!