----------------------------4.2 Pressure Driller-----------------------------

In Mission Driller your sole goal is to destroy a giant spider-like drilling-
robot following your path down a randomly-generated cave. By collecting up to 
three POW capsules you fuel your flame-thrower which can be used to shoot a 
fireball upwards at any distance.
The enemy's life energy is determined by its weight measured in tons.
Hitting the spider's only weak spot (a three spaces-wide flower appearing 
either in the centre or at the left respectively right) with a single POW-
capsule collected will diminish its weight by 10 tons, a level 2-fireball 
causes 25 damage points and having collected the maximum of three capsules at 
a time will result in a fireball that deals 40 damage points so you'd be 
advised to shoot only when having reached the maximum pow.
Special blocks have the same effect here as in every other mode although they 
look different: I cannot tell you why they are shaped like snowmen but what I 
can tell you is that the robot sometimes spills out new white blocks, X-
blocks or crystal blocks replacing normal blocks.
Dying in Pressure Driller is only possible when touching the enemy causing an 
instant defeat), being crushed by blocks or going out of air just make you 
lose time and all POW capsules collected so far.
Note that the spider robot will throw off its outer shell after a certain 
amount of damage taken making it move quicker than before.
Just like in Mission Driller any miles you traverse will count towards the 
shopping points and you receive bonus miles after completing a level.
Points do not matter in this play mode, the only things recorded are the time 
needed and the depth you were at when ending a level (the less distance you 
moved the better).
The more important factor for record keeping is the time so if you've 
improved on the depth needed to beat a level but the time needed is higher 
than on the old record nothing new will be saved.
Usagi cannot be used in this game mode.