Secondly, there are mine - cart sections where you have to
jump at the right time to clear gaps, and lastly there are a few sections that require you to «
tilt» the stage in order to move water to push a plug from the wall, whilst stopping Sonic from sinking into some spikes — this bit was pretty badly executed, and one of the worst elements of the
game, but it's easy once you know how, and only lasts a few seconds.