Mr Driller Ace

Allows you to choose from six different Drillers in original mode each with their own attributes. Drilling miles built up can be spent in the shop to get some tidy upgrades. Also has a race challenge mode where you battle opponents to get through the puzzle to the finish before them. But its the Mysterious Pacteria mode that really stands out as the gameplay is changed slightly: instead of steadily depleting oxygen, the O2 is only lost when you drill making for some tactical decisions. Beautifully presented and well at home on the handheld.