Those glittering gems are absolute troublemakers. You spot a few tucked behind some awkward blocks, convince yourself they're worth the detour, and promptly get clobbered by something you hadn't noticed. The familiar shovel bounce still feels wonderfully snappy, but digging downward while dodging enemies takes a different kind of concentration. Sometimes the terrain feels downright spiteful, especially when a promising run ends over one badly timed jump. The community-made Android port offers another way to tackle these underground escapades, with the supplied build listed as having the complete game content unlocked. It's demanding, occasionally maddening, and rather difficult to leave alone once you've decided that the next attempt will surely go better.