The spikes are removed if the game is in no death or time trial mode,
however the removal is accomplished by modifying a static array. So if
the player switches to no death or time trial mode and switches back to
regular play, the spikes will no longer be present until the game is
restarted.
This simple fix writes the spikes back to the static array if the game
is not in no death or time trial mode. Another option is to maintain 2
static arrays - one with the spikes and one without - but that is
needlessly wasteful and prone to mistakes (one array updated but not the
other).
Matt Penny