A nice, simple game.
I like the low-res pixel art. Although, I'm not sure what's going on with the sky graphic -- seems a bit noisy. The use of many resolutions can also get a bit tacky at times. The characters and buildings are cute, though.
The rapidly flashing green and black lights at the [back of the bar]* first set of caves are too rapid -- they should be slowed down, like they are in the mine cart section.
Restarting the first hacking minigame from the beginning was a bit much. A level restart seems sufficient.
Good job on the fish minigame! It's perfectly balanced.
Good work!
*[RETRACTION: Incorrect location of lights]