Nice game! Got stuck on an upward tunnel (collision on both sides), but it's well implemented. Hope it get some sounds later, it could ad a lot to the game!

I think it entered an infinite loop at one point, because the whole game just froze, when I was nearing the end of the rectangular maze.

It was fun getting really fast. At the end when I was going supersonic everywhere, it was pretty fun driving around as fast as I could trying not to hit walls.

Cool mining effect. Though it is kind hard to fully control the direction of submarine, it makes the game experience real and interesting. It is a pity that no bg music added which could create a greater atmosphere. Overall, cool idea! Good jobs!

Interesting take on the theme.

By the time I got to the enemies explanation text, it had wandered off elsewhere :P

Some simple sound effects would really help bring it to life.

Nice job :thumbsup: