Buttons are too sensitive and checkpoints are too few and far between to be enjoyable. running across 6 screens only to die on the same spike 20 times over isn't particularly fun.. And to climb you should be able to just hold the arrow into the wall to hold on.
A hint for the 6 explosions mission, max your rocket explosion and explode the rocket on the right-hand side of the map above the middle of the 3 cars, this'll count the 3 cars plus the rocket as explosions, then run left to the bull dozer then kamikaze, it'll count both as explosions.
Did anyone else notice that the base of the story is lifted directly from Event Horizon? The inter-dimentional ship, the crew getting all munted, the visions of sick stuff happening....
i dunno about the whole completely random thing...... i got 5 unavoidable zilches in a row meanwhile the comp was getting 1000+ combos on the first roll....