On Chrome, right-click brings up the context menu in addition to flagging a mine, which basically makes this unplayable.

Also the ship is not explained at all (the graphics, the controls, the systems). I'd recommend at least a one paragraph help section in the menu.

Long press instead of right click also marks mines.

fixed

Cool! But on level 10 the ship can't move further to the goal although the path is cleared. No movement forward is allowed

fixed. thx for the feeback