Unbelievable as it may seem after watching even the first video, the second part of Snake, Rattle 'n' Roll ramps up the difficulty in a variety of miscellaneous preposterous ways, including:

• Waterfalls and currents
• Enemies that appear out of nowhere
• Precision-timed geyser-hopping
• Ice
• Slopes
• Icy slopes
• Slopey ice
• Icy feet
• Each other

I cannot imagine playing through this game with an initial complement of nine lives. Whoever designed the levels must have had a real interest in watching the frustration of others - maybe he'd just gone through a messy divorce.